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Expired Canadian patentCanada

Anti-theft device

CA 2029757 C · Owner: Fogle, Homer W. Jr. · Inventors: Fogle, Homer W. Jr.

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 currency alarm pack especially adapted for use in the cash supply of an automatic teller machine comprising a motion detector, an exit field detector a smoke generating, device, and electronic circuitry responsive to the motion, detector and the field detector for triggering the smoke, generator if and only if, the field detector detects the exit field and thereafter ceases to detect the exit field and the motion detector detects motion of the alarm pack during a predetermined delay interval following the time at which the field detector ceases to detect the exit field.

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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 November 13, 1990 and granted October 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 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.
FiledNovember 13, 1990
GrantedOctober 5, 1999
Term endedNovember 13, 2010
Patent numberCA 2029757 C
Classification (IPC)G08B13/24 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedNov 13, 1990Patent grantedOct 5, 1999Term endedNov 13, 2010

Sources & verification

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