Tubular tailpiece for a flush valve
CA 2011760 C · Owner: Whiteside, John F. · Inventors: Whiteside, John F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tubular connection for a plumbing fixture such as a flush valve includes a conduit, one end of which is formed and adapted to extend within an opening in the plumbing fixture. The plumbing fixture opening includes an exterior peripheral stop. The conduit has a peripheral recess spaced from the end within the plumbing fixture opening, with a seal ring being positioned within the recess and in sealing contact with the opening and the conduit. The conduit has an outward peripheral projection adjacent the recess, which projection is positioned against the peripheral stop of the plumbing fixture. A retainer is positioned adjacent the conduit end within the plumbing fixture opening and has …
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 March 8, 1990 and granted November 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2012.
- 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.