Sewage osmosis system
CA 1100905 A · Owner: Coolbroth, Frank P. · Inventors: Coolbroth, Frank P.; Peterson, Earl C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for dispersing aqueous effluents from a sewage treatment system utilizing a generally closed septic or sewage retention tank and a subterranean disposal field area for receiving the discharge from the septic tank. The septic tank is arranged to receive raw sewage and to retain solids and ultimately discharge aqueous fluid effluent into the disposal field area. The disposal field is normally disposed adjacent the septic tank vessel and is arranged to receive and disperse the aqueous fluid effluent discharged from the septic tank. Anode means and cathode means are arranged generally laterally of the disposal field with the anodes and cathodes being disposed on opposed sides of the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 12, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.