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Expired Canadian patentCanada

Surgical drape

CA 1061211 A · Owner: Johnson And Johnson · Inventors: Krzewinski, Henrietta K.

CIPO record

Overview

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

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Abstract From the Canadian patent

A fenestrated surgical drape for use in orthopedic and related surgery comprising a flexible and unitary sheet having a main portion and two adjacent wing portions whose inner edges, preferably spaced a small distance from each other, define therebetween an elongated slit or gap. The slit merges into a fenestration which is located generally inwardly of the perimeter of the drape. One of the two wing portions has a flap-like sheet which, after the drape has been applied to a patient, covers at least a portion of the length of the slit and lies beneath the other of the wing portions. An extremity, e.g. a leg, extends through the fenestration during surgery. The drape is preferably reinforced …

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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 August 28, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 28, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedAugust 28, 1979
Term endedAugust 28, 1996
Patent numberCA 1061211 A
Classification (IPC)A61B46/00 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedAug 28, 1979Term endedAug 28, 1996

Sources & verification

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