Expired Canadian patentCanada
Cultured fish carotenoid and polyphenol added feed for improving fish body color tone and fish meat brilliance
CA 2311205 C · Owner: Nakajima Suisan Co. Ltd. · Inventors: Sakiura, Toshiyuki
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inexpensive cultured fish feed contains a prescribed amount of proanthocyanidin to thereby make an addition amount of carothenoid small. Proanthocyanidin is added by 0.004 - 0.04 weight percent to a culture feed containing crothenoid.
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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 9, 2000 and granted May 6, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 9, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2022.
- 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 9, 2000
GrantedMay 6, 2003
Term endedJune 9, 2020
Patent numberCA 2311205 C
Classification (IPC)A23K1/18 +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.