Somatotropin analogs
CA 2005502 C · Owner: Tomich, Che-Shen C. · Inventors: Mott, John E.; Parcells, Alan J.; Tomich, Che-Shen C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides mammalian somatotropin analogs and in particular, bovine somatotropin analogs in which at least one of the cysteine amino acids at positions 53 164, 181 or 189, has been replaced with serine. Also provided are methods for enhancing growth and lactation using such analogs.
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 15, 1989 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 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.