Glycoprotein hormone superagonists
CA 2253441 C · Owner: Szkudlinski, Mariusz W. · Inventors: Szkudlinski, Mariusz W.; Weintraub, Bruce D.; Grossman, Mathis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is directed toward a human glycoprotein hormone having at least one, two, three, four or five basic amino acids in the .alpha.-subunit at positions selected from the group consisting of positions 11 13, 14, 16, 17 , and 20. The invention is also directed to a human glycoprotein where at least one of the amino acids at positions 58 63 and 69 of the .beta.-subunit of the human thyroid stimulating hormone are basic amino acids. The invention is further directed to a modified human glycoprotein hormone having increased activity over a wild-type human glycoprotein hormone where the modified human , glycoprotein hormone comprises a basic amino acid substituted at a position …
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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
- Filed May 8, 1996 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 8, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2018.
- 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.