Vehicle wastewater drainage system
CA 2323399 C · Owner: Stegall, Lannie L. · Inventors: Stegall, Lannie L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wastewater drainage system for a vehicle such as a recreational vehicle, (RV), is provided. The system includes a pump such as a macerator pump, in, selective fluid communication with the black water tank and the gray water tank, and a drainage hose connected to the exit end of the pump for directing wastewater, to a wastewater storage area. The system allows the RV user to clean the black water tank using water from the gray water tank and allows gray water to be, stored in the black water tank so that less time is spent draining the tanks and more, time is spent enjoying the RV experience.
Read the whole patent
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
- Filed October 17, 2000 and granted July 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2022.
- 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.