Stent valves and uses of same
CA 2840468 C · Owner: Cook Biotech Incorporated · Inventors: Obermiller, Joseph F.; Thorpe, Patricia E.; Osse, Francisco J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention includes a medical device and more specifically relates to a valve found generally within a frame. In a preferred device the frame preferably comprises a self-expanding stent frame and the valve has at least one expandable and contractible pocket member within the stent frame for resisting and permitting fluid flow respectively.
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 January 31, 2001 and granted July 26, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2023.
- 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.