Non-antigenic, non-thrombogenic infection-resistant grafts from umbilical cord vessels and process for preparing and using same
CA 1055843 A · Owner: Dardik, Herbert · Inventors: Dardik, Irving I.; Dardik, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Flexible segments of mammalian umbilical cord vessels which are non-antigenic and non-thrombogenic are disclosed for use as protheses in mammals. The flexible segments are prepared by separation and removal of principal blood vessels from an umbilical cord hardening, of the blood vessels by means of a reagent preferably formaldehyde, glutaraldehyde dialdehyde starch or glyoxal, and shaping of the vessels.
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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
- Granted June 5, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 5, 1996.
- 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.