Expired Canadian patentCanada
Protein structure of the plant toxin gelonin
CA 2088068 C · Owner: Research Development Foundation · Inventors: Rosenblum, Michael; Kohr, William J.; Aggarwal, Bharat
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
cDNA coding and amino-acid sequence for gelonin or for a polypeptide having an activity which inhibits cellular protein synthesis but does not bind to a cell surface receptor
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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 August 14, 1991 and granted June 15, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 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.
FiledAugust 14, 1991
GrantedJune 15, 1999
Term endedAugust 14, 2011
Patent numberCA 2088068 C
Classification (IPC)C12N15/29 +2 more
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.