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Expired Canadian patentCanada

Connective tissue prosthesis

CA 1236652 A · Owner: Johnson & Johnson · Inventors: Shah, Jitendera S.

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

A prosthesis, such as a ligament or tendon prosthesis, comprises a low elastic modulus load bearing element (1) to which are attached a plurality of fine filaments (3) having a higher elastic modulus. The arrangement is such that the fine filaments are unstressed unless the load on the prosthesis exceeds a predetermined value, thus simulating the mechanical response of native collagenous tissue. The fine filaments, which are preferably of polyester are arranged, to allow ingrowth of fresh connective tissue.

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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

  • Granted May 17, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 2005.
  • 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 16, 1985
GrantedMay 17, 1988
Term endedMay 17, 2005
Patent numberCA 1236652 A
Classification (IPC)A61F2/00 +1 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedJuly 16, 1985Patent grantedMay 17, 1988Term endedMay 17, 2005

Sources & verification

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