Valve with removable insert
CA 2022211 C · Owner: Garnham, David · Inventors: Garnham, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Docket Number: 023114-CA, Abstract of the Disclosure A valve assembly has a body portion (11) which can be removably receivable in a receptacle (10). The body carries the valve element such as a gate which controls fluid through a flowpath in the body. The openings of a flowpath in the receptacle accommodate annular sealing members (23 24) which, are movable axially in the openings. Means such as a lever arrangement (32, 33) are coupled to each sealing members and are contactable by the body (11) on its insertion in the receptacle such that the sealing members are moved axially toward the body to seal around the flowpath openings of the body.
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 July 30, 1990 and granted November 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 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.