Hemostatic collagen paste composition
CA 2004739 C · Owner: Saferstein, Lowell · Inventors: Saferstein, Lowell; Wolf, Stephen J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hemostatic collagen paste composition comprising a mixture, by weight of the total composition sf 2 to 30%, of crosslinked collagen powder of 10 to 100 mesh particle size and 30 to 98% of water or an aqueous saline solution and hemostatic paste compositions that also comprise a hemostatic enhancing amount of thrombin as well as, metpods of making and using such hemostatic collagen paste compositions.
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 December 6, 1989 and granted March 28, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2011.
- 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.