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Expired Canadian patentCanada

Method for collecting useful portions of fish heads and device for collecting useful portions of fish head

CA 2647776 C · Owner: Hagihara, Yoshihiro · Inventors: Hashimoto, Akira; Shimachi, Shigeyuki; Tashiro, Katsuo

CIPO record

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Abstract From the Canadian patent

PROBLEMS To appropriately collect a , specific useful part alone from fish heads almost regardless of the fish head size, so long as the fish belong to the same species and have roughly the same head shape thereby elevating , the efficiency of collecting the useful part of fish heads. MEANS FOR SOLVING PROBLEMS From a large number of fish heads (W) which are heads(W) of fish belonging to the same species and have roughly the same shape, the pituitary gland (M) alone is collected and treated as a specific useful part of the fish heads (W). While a large number of fish heads (W) with different sizes are brought into rest at a specific position, a useful part curve (P) along , which …

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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 September 29, 2006 and granted December 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 2006
GrantedDecember 24, 2013
Term endedSeptember 29, 2026
Patent numberCA 2647776 C
Classification (IPC)A22C25/00 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 29, 2006Patent grantedDec 24, 2013Term endedSep 29, 2026

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