Cardiac valve
CA 2131714 C · Owner: Jcl Technic Ab · Inventors: Lentell, Jan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cardiac valve, so called heart valve, comprising a sleeve or ring having an inlet end and an outlet end and which is provided with a central opening (4), and openable and closable flaps having for their purpose to allow flow of blood through the central opening (4) in one direction, the flaps (9a-c) being designed as circle segments) where the sector angle designated a has the value 360~/n, where n is the number of circle segments and is 3 4, 5 or 6, said flaps (9a-c) being at their outer edges pivotably connected to the inside of the ring (3) at said inlet end thereof in that , each flap (9a-c) is connected to the ring (3) by means of a hinge which is arranged in the center of the …
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 11, 1993 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2015.
- 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.