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Expired Canadian patentCanada

Carriers having biological substance

CA 2365780 C · Owner: Miyauchi, Haruko · Inventors: Ito, Chiho; Yu, Fujio; Sumi, Toshinori

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention relates to biological substance-immobilized fibers wherein a biological substance is immobilized on a fiber fibers retaining a , biological , substance-immobilized gel and fiber alignments having bundles of the abovedescribed , fibers and slices of the same.

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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 March 6, 2000 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 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.
FiledMarch 6, 2000
GrantedJanuary 31, 2012
Term endedMarch 6, 2020
Patent numberCA 2365780 C
Classification (IPC)C07H21/04 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedMarch 6, 2000Patent grantedJan 31, 2012Term endedMarch 6, 2020

Sources & verification

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