Gravity fed water conveyance system
CA 2444327 A1 · Owner: Roper, Bruce Eugene · Inventors: Roper, Bruce Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The Gravity Fed Water Conveyance System is designed to alleviate water shortages by, way of a system of underground water lines supplying water from dam reservoirs to areas, where there is an identified shortage of water. The system operates by way of changes in, elevation from the dam site to the user areas. The process occurs naturally without, benefit of moving parts, pumps or electrical power and is virtually , maintenance-free. The system is designed to connect with municipal water systems and provide water for, domestic and industrial uses as well as irrigation needs.
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 7, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2025.
- 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.