Expired Canadian patentCanada
Phospholipase a1, processes for its preparation and the use thereof
CA 2098421 C · Owner: Sankyo Company, Limited · Inventors: Hattori, Atsushi; Uchida, Noriyoshi; Kitaoka, Masahiro
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A phospholipase A1 which is capable of hydrolyzing a phospholipid to produce a 2-acyl lysophospholipid and is obtainable from species of the fungus Aspergillus.
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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 15, 1993 and granted September 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2015.
- 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 15, 1993
GrantedSeptember 24, 2002
Term endedJune 15, 2013
Patent numberCA 2098421 C
Classification (IPC)C12N9/18 +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.