Analogs of keratinocyte growth factor having enhanced temperature stability
CA 2201944 C · Owner: Arakawa, Tsutomu · Inventors: Arakawa, Tsutomu; Fox, Gary Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Analogs of proteins in the FGF family are provided in accordance with the present invention. These analogs are more stable than the corresponding naturally occurring proteins. Enhanced stability may be achieved by substituting at least one amino acid having a higher loop-forming potential for an amino acid residue having a lower loop-forming potential in an identified loop-forming region in the amino acid sequence of the protein. The analogs of the present invention are especially useful in therapeutic applications.
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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 October 12, 1995 and granted December 31, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 2017.
- 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.