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Expired Canadian patentCanada

Tamper proof hanger with improved ratchet arm

CA 2011080 C · Owner: Quada International Ltd. · Inventors: Mauffette, Claude

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 key-operable combination for use in a tamper-proof garment hanger, which combination is very simple yet efficient in structure and is capable of cooperation with a rack forming part of a garment gripping member for selectively holding the gripping member into and out of locking position. This key-operable combination comprises a cylinder lock comprising an outer lock cylinder solid with the larger casing and a key-operable rotary lock barrel mounted within the outer cylinder. An operating member is rotatably mounted on the outer lock cylinder within the, casing, this operating member and the lock barrel being coupled together for allowing rotation of the operating member when the lock …

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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 February 28, 1990 and granted April 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 1990
GrantedApril 27, 1999
Term endedFebruary 28, 2010
Patent numberCA 2011080 C
Classification (IPC)A47G25/48

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 28, 1990Patent grantedApril 27, 1999Term endedFeb 28, 2010

Sources & verification

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