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Expired Canadian patentCanada

Method for processing fish heads and apparatus for separating processed fish heads

CA 2320147 C · Owner: Fujii, Keisuke · Inventors: Fujii, Keisuke

CIPO record

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Abstract From the Canadian patent

A fish head, after being heated and softened is broken down into its nose, cartilage and various residues by being rotated and crushed after a fish , head. The, method of processing a fish head also includes the following steps: separating the, nose cartilage into an end proboscis part and a rear part; making a paste by removing, fats after making comminutions of the cartilage; making a paste by removing the fats, after making comminutions of the end proboscis part; making a paste of the aforesaid rear part; making a raw material from which to extract chondroitin sulfate, after removing the fats of the nose cartilage; making a powder from the paste of the, end proboscis part; and …

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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 23, 1999 and granted September 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 23, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2021.
  • 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 23, 1999
GrantedSeptember 9, 2003
Term endedJuly 23, 2019
Patent numberCA 2320147 C
Classification (IPC)A22C25/14 +1 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 23, 1999Patent grantedSep 9, 2003Term endedJuly 23, 2019

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.