Expired Canadian patentCanada
Polypeptide having an improved cytosine deaminase activity
CA 2532783 C · Owner: Transgene S.A. · Inventors: Erbs, Philippe
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a polypeptide possessing a CDase activity characterized in that it is derived from a native CDase by addition of an amino acid sequence with the proviso that said polypeptide has no UPRtase or Thymidine Kinase activity.
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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 June 29, 2004 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 29, 2004
GrantedSeptember 17, 2013
Term endedJune 29, 2024
Patent numberCA 2532783 C
Classification (IPC)C12N15/62 +1 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.