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Expired Canadian patentCanada

Anti-theft seal for commercial articles having rod-like portions

CA 2042323 C · Owner: Costa, Emilio · Inventors: Costa, Emilio

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

An anti-theft seal for commercial articles having rodlike portions such as spectacles includes a box-like body for containing an electronic indication component. The body has a tab which is constituted by three consecutive elements which are articulated by reducing their cross section so that they can fold back onto the body and define a containment seat for a rod-like element to be secured. A slider engages, in a non-reversible manner a guide which is, rigidly associated with the box-like body; the slider has a mushroom-shaped head which is suitable for inserting by, translatory motion, in a seat of the tab so as to lock it in folded position.

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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 May 10, 1991 and granted February 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 10, 1991
GrantedFebruary 29, 2000
Term endedMay 10, 2011
Patent numberCA 2042323 C
Classification (IPC)G08B13/00 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMay 10, 1991Patent grantedFeb 29, 2000Term endedMay 10, 2011

Sources & verification

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