Hinged pipe coupling
CA 2010752 C · Owner: Quikcoup, Incorporated · Inventors: Palatchy, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A circular pipe coupling for coupling aligned pipe ends is formed of arcuate segments arranged end to end. Each segment has outwardly extending lugs formed on its opposite ends with the lugs, on the adjacent segment ends being interconnected. One of each pair of interconnected lugs is formed with an integral hook with a, corresponding opening for receiving the hook formed on the opposite lug and providing an axle upon which the hook is engaged to form a hinge connection, except that one of the pairs of lugs is connected together by a manually releasable mechanical fastener such as a, bolt. One of the segments may be manually positioned upon the adjacent pipe ends to be coupled, with one or …
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 February 22, 1990 and granted May 9, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 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.