Expired Canadian patentCanada
Novel variant egiii-like cellulase compositions
CA 2417809 C · Owner: Phillips, Jay · Inventors: Gualfetti, Peter; Phillips, Jay; Mitchinson, Colin
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 novel variant EGIII or EGIII-like cellulases that have improved stability. The variant cellulases have performance sensitive residues replaced to a residue having modified stability.
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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 July 31, 2001 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 31, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 31, 2001
GrantedMarch 13, 2012
Term endedJuly 31, 2021
Patent numberCA 2417809 C
Classification (IPC)C12N15/56 +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.