Mutation of human granulocyte colony stimulating factor to allow the addition of carbohydrate chains at novel positions
CA 1341385 C · Owner: Nishi, Tatsunari · Inventors: Nishi, Tatsunari; Sasaki, Katsutoshi; Sato, Moriyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polypeptide or glycosylated polypeptide with at least one new carbohydrate chain produced by means of recombinant DNA technique, which has protease resistance and thermal stability and is expected to have longer lifetime in blood than those of a naturally-occurring form.
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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 August 20, 2002. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2019.
- 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.