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Expired Canadian patentCanada

Theft-deterrent device for theft-attractive articles

CA 2104896 C · Owner: Stoltz, Klas · Inventors: Stoltz, Klas; Gustavsson, Bo

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 theft deterrent which is intended to be attached to theft-attractive articles and which is constructed for coaction with a release device adapted for the release of the theft deterrent. The theft deterrent includes a first element (10) having a connecting element (12) which projects out from the first element (10) and which is intended to be inserted through an article to be protected, and a second element (14) which can be attached to and locked on the connecting element (12). The second element (14) includes a casing (16) which houses a fragile marking-substance containing ampule (44) and a locking unit (18). The locking unit (18) is intended to receive …

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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 August 26, 1993 and granted April 21, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 26, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 26, 1993
GrantedApril 21, 1998
Term endedAugust 26, 2013
Patent numberCA 2104896 C
Classification (IPC)G08B13/00 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedAug 26, 1993Patent grantedApril 21, 1998Term endedAug 26, 2013

Sources & verification

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