Thrombin-binding substance and process for preparing the same
CA 2056005 C · Owner: Iwasaki, Akio · Inventors: Ohkuchi, Masao; Kimura, Shigeru; Doi, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Thrombin-binding substances capable of promoting antithrombin III activity and inhibiting platelet aggregation and by themselves possessing anti-thrombin activity are disclosed. The thrombin-binding substances are useful as an effective component of anticoagulant agents and can be, produced inexpensively on a large scale.
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 November 22, 1991 and granted September 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2013.
- 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.