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Expired Canadian patentCanada

Conformable stretch bandage

CA 2071386 C · Owner: Parikh, Dharni V. · Inventors: Parikh, Dharni V.; Kent, Joseph N.

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 lightweight, porous knitted elastic bandage produced from a warp of false-twist synthetic yarns with a filling inlay of cotton yarn arranged in varying patterns across the warp yarns, wherein the filling cotton yarn is slack mercerized whereby to provide increased ply adhesion over that of the regular cotton yarn.

Read the whole patent

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 June 17, 1992 and granted January 7, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 17, 1992
GrantedJanuary 7, 1997
Term endedJune 17, 2012
Patent numberCA 2071386 C
Classification (IPC)A61F13/04 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJune 17, 1992Patent grantedJan 7, 1997Term endedJune 17, 2012

Sources & verification

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