Detrimental-substance-containing theft-deterrent device
CA 2024756 C · Owner: Security Tag Systems, Inc. · Inventors: Hogan, Dennis L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for deterring theft of a protected article including a pin and, clutch for attaching the device to the article with the pin and clutch being , embodied in two components that are adapted to be locked together on opposite sides of a portion of the protected article to prevent unauthorized removal of the, device from the article. The pin has a head that is anchored within one component; and the clutch in the other component grasps the pin to provide a predetermined retaining force for resisting separation of the components by prying, or pulling the components apart. The one component includes three fragile elongated vials that fracture when at least a predetermined pressure is …
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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 September 6, 1990 and granted July 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.