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Expired Canadian patentCanada

Method and device in connection with plaster-of-paris bandages

CA 1107597 A · Owner: Landstingens Inkopscentral, Lic · Inventors: Lindstrom, Lars G.; Wahl, Karl I.

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

The present invention relates to a plaster cast cutting wire permitting the simple removal of a plaster cast or dressing. The plaster cast cutting wire comprises an anchoring plate from which two substantially equally long cutting wire ends extend. The cutting wire is positioned against the limb or body portion to be dressed and the plaster-of-Paris bandage is wound around both the body portion and the plaster cutting wire in a way, causing the plate to become embedded in the cast. In order to facilitate removal of the plaster cast or dressing at least two plaster cutting wires will normally be used thereby providing, for division of the plaster cast into at least two parts upon removal. If …

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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 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 21, 1979
GrantedAugust 25, 1981
Term endedAugust 25, 1998
Patent numberCA 1107597 A
Classification (IPC)A61F13/04 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedNov 21, 1979Patent grantedAug 25, 1981Term endedAug 25, 1998

Sources & verification

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