Method for preparing a dried composition of insulin-like growth factor i
CA 2033535 A1 · Owner: Fujisawa Pharmaceutical Co. Ltd. · Inventors: Yamanaka, Iwao; Nakanishi, Shigeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dried composition containing IGF-I which is highly soluble and has a long shelf-life. This composition is prepared by drying a solution containing insulin-like growth factor I together with a strong acid which could be hydrochloric acid, hydrobromic acid, nitric acid, methanesulfonic acid, sulfuric acid, phosphonic acid and oxalic acid.
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 January 3, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 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.