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2024
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Invention
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Leaching chamber having a sidewall with louvers.
A plastic leaching chamber is provided and incl... |
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2023
|
Invention
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Modular subsurface wastewater treatment system. Systems, methods, and apparatuses are disclosed r... |
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Invention
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Modular subsurface wastewater treatment system.
Systems, methods, and apparatuses are disclosed ... |
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Invention
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Conical risers interconnected by radially and circumferentially deflecting latches.
Risers for u... |
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Invention
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Stormwater box with pyramidal polyhedron bracing.
A rectanguloid shape six-walled thermoplastic ... |
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2022
|
Invention
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Conical wall riser with interleaved tab connectors. A plastic article useful as a riser assembly ... |
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Invention
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Leaching chamber having a sidewall with louvers. A plastic leaching chamber is provided and inclu... |
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P/S
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Apparatus for receiving, holding, dispersing or treating aqueous liquids, namely, leaching chambe... |
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P/S
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Apparatus in the nature of water purification modules for sub-surface treatment of wastewater |
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2021
|
Invention
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Stormwater system having multiple plates and one-piece columns. A module that is useful for recei... |
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2020
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Invention
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Safety grating for riser of a septic tank. A safety grating has an arch shape cross section and i... |
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2019
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Invention
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Multi-purpose lid for septic tank and an associated riser. A kit, and an assembly formed with com... |
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2017
|
Invention
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Method of fusion welding large plastic parts. A large tubular plastic tank is formed by fusion we... |
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Invention
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Leaching unit having overhanging and perforated canopy. A plastic leaching unit for receiving wat... |
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P/S
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Plastic risers and plastic riser assemblies for septic tanks and for liquid holding tanks for use... |
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Invention
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Taper-wall riser with tab connectors. A plastic article useful as a riser assembly (18) for a sep... |
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Invention
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Taper-wall riser with tab connectors. A plastic article useful as a riser assembly for a septic t... |
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Invention
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Making a plastic tank having a weld joint by using a resilient clamp. A plastic tank is comprised... |
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Invention
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Making a plastic tank with an integrity-verifiable weld joint. A plastic tank is comprised of two... |
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Invention
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Plastic tank having a welded frusto-conical flange joint. A plastic tank is comprised of two part... |
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2016
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Invention
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Method of molding a lined plastic storage tank. A method of making a plastic tank suitable for co... |
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Invention
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Plastic tank having fusion welded parts. A large tubular plastic tank, for use in holding unpress... |
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Invention
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Drainage units wrapped in sunlight-impeding wrapping. A set of three tubular drainage units, each... |
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Invention
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Septic tank having a lid with access port. A tank suited for use as a septic tank or for otherwis... |
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Invention
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Fabricating a quilted drainage unit using a flat bed. A substantially cylindrical drainage unit f... |
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Invention
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Fabricating a plastic stormwater chamber. A method of making a molded plastic arch shape cross se... |
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2015
|
Invention
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Leaching chamber having sidewall with tenced louvers. A corrugated thermoplastic leaching chamber... |
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Invention
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Molded plastic water storage tank. The cover of a plastic water storage tank is attached to a tan... |
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Invention
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Two piece plastic stormwater chamber having locking rod. A molded plastic arch shape cross sectio... |
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Invention
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Leaching unit having pillars and canopy. A plastic leaching unit for receiving water when buried ... |
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2014
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Invention
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Multi-ring plastic storage tanks and risers. A plastic article useful as a riser for a septic tan... |
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Invention
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Molded plastic water storage tank. The cover of a plastic tank suitable for containing water is a... |
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Invention
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Drainage unit having a quilt exterior. A substantially cylindrical drainage unit for use when bur... |
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Invention
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Fabricating a drainage unit having a quilted exterior surface. A substantially cylindrical draina... |
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2013
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P/S
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septic tank risers, lids for septic tank risers, and lids for septic tanks, all made of molded pl... |
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|
Invention
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Molded plastic stormwater chamber having a hinged top joint. A molded plastic arch shape cross se... |
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Invention
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Plastic stormwater chamber made from separately molded half chambers. A molded plastic arch shape... |
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|
Invention
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Method for internally supporting a septic tank and an internal support article for a septic tank.... |
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2012
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Invention
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Manipulating and restraining a two piece septic tank. A molded plastic tank, optionally a septic ... |
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Invention
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Plastic tank having a clamped joint. An injection molded plastic tank for containing liquids, suc... |
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2011
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Invention
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Leaching chamber with water-permeable barriers on sidewalls. Barriers are placed over openings in... |
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Invention
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Leaching chamber having pillars. A plastic leaching chamber has an arch shape cross section, corr... |
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2010
|
Invention
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Septic tank having deformation-resisting top access flange. A plastic septic tank has a body made... |
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Invention
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Leaching chamber family with common end connectors. In a family of plastic leaching chambers, eac... |
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Invention
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Corrugated leaching chamber with hollow pillar supports. A plastic leaching chamber has an arch s... |
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2009
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Invention
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Plastic septic tank having layered composite wall. A septic tank or storage tank has a corrugated... |
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Invention
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Corrugated septic tank with strengthening features. A molded thermoplastic tank for use as a sept... |
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2008
|
Invention
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Leaching chamber with continuous curve arch and closely spaced corrugations. A method for treatin... |
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Invention
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Leaching chamber having a diagonally ribbed top. A leaching chamber having opposing inwardly and ... |
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Invention
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Leaching chamber having a dome shaped end portion for pivotably connecting with a second chamber ... |
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2007
|
Invention
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Corrugated leaching chamber |
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2004
|
Invention
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Leaching chamber with strengthened dome end. A molded plastic corrugated arch shape cross section... |
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1997
|
P/S
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non-metallic chambers for dispersing or collecting liquids within soil and granular materials |
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1995
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P/S
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non-metallic chambers for dispersing and collecting liquids within soil and granular materials in... |
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1993
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P/S
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non-metallic conduit for dispersing and collecting liquids within earth and granular materials |
