Stabilization of aqueous-based hydrophobic protein solutions and sustained release vehicle
CA 2046324 A1 · Owner: Magee, Andrew S. · Inventors: Tsang, Wen-Ghih; Magee, Andrew S.; Shyr, Ann W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
19-, Abstract of the Invention, Disclosed is a method for producing stable high concentration solutions of hydrophilic proteins. These methods are useful in producing vehicles which provide sustained release of proteins e.g. hydrophobic proteins, into aqueous environments. 1124R 01/13/89
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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 January 10, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 10, 2012.
- 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.