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Expired Canadian patentCanada

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CA 2037546 C · Owner: Tokyo Eizai Laboratory Co. Ltd. · Inventors: Shiono, Katuaki

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 provides an improved support element for a portion of the human body (as for instance, an elbow or knee) for medical and sports use. This support element has a reinforcing member formed by laminating an interlining having a greater modulus of elasticity than that of an elastic material for forming the main body and a surface member for restricting the elongation of the interlining is adhered to one portion of the surface of the main body comprising the elastic material the, shape of which is cylindrical such as to fit with an affected part of the human body. The reinforcing member has a modulus such that the support element is capable of restricting movement of the …

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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 5, 1991 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2013.
  • 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 5, 1991
GrantedJuly 23, 2002
Term endedMarch 5, 2011
Patent numberCA 2037546 C
Classification (IPC)A61F5/01 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMarch 5, 1991Patent grantedJuly 23, 2002Term endedMarch 5, 2011

Sources & verification

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