Heparin fragments having selective anticoagulation activity
CA 1136620 A · Owner: Pharmacia Aktiebolag · Inventors: Backstrom, Gudrun E.; Thunberg, John Y.L.; Soderstrom, Ewa G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Heparin fragments having selective anticoagulation activity having 14-18 sugar units, the disaccharide unit L - iduronosyl- - 2 - O - sulphate - N - sulpho - U - glucosamine - 6 - O - - sulphate being the main component, and where unsulphated L-iduronic acid is in a position situated 3-5 sugar units from the unreducing terminal. Pharmaceutical compositions containing such heparin fragments. Processes for the preparation of the heparin fragments.
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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 November 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
- 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
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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.