Heart valve leaflet with scalloped free margin
CA 2368939 A1 · Owner: Moe, Riyad E. · Inventors: Sarnowski, Edward J.; Moe, Riyad E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heart valve prosthesis (10) includes a molded body (12) and a plurality of leaflets (18). Each leaflet (18) includes a free margin (22) having opposite ends and a mid-point. The opposite ends are attached to a peripheral portion of the valve. Each free margin (22) is adjacent each other free margin (22) to form a natural-state non-uniform gap (24) therebetween. The gap (24) has a maximized width adjacent the mid-point of each leaflet (18). Each free margin (22) is scalloped to form a peak (36) at the opposite ends and a mid-point peak (40) between the opposite ends. Each peak is substantially the same height above the base.
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 April 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2022.
- 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.