Expired Canadian patentCanada
Novel variant hyprocrea jecorina cbh1 cellulases
CA 2495664 C · Owner: Gualfetti, Peter · Inventors: Shaw, Andrew; Gualfetti, Peter; Sandgren, Mats
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Described herein are variants of H. jecorina CBH I a Cel7 enzyme. The present , invention provides novel cellobiohydrolases that have improved thermostability and reversibility.
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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 15, 2003 and granted January 6, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 15, 2025.
- 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 15, 2003
GrantedJanuary 6, 2015
Term endedAugust 15, 2023
Patent numberCA 2495664 C
Classification (IPC)C12N9/42 +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.