Device for detecting unauthorized article removal
CA 2279901 C · Owner: Deschenes, Charles L. · Inventors: Deschenes, Charles L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device (11) for use in detecting the unauthorized removal of an article of commerce from a store or other business establishment. The device (11) comprises a fastener (13) of the type constructed for use in attaching a tag to the article of commerce. The fastener (13) includes a first end a second , end (17) and a filament (19) interconnecting the first end and the second end (17). The first end is shaped to define a cross-bar (15) which can be inserted through the tag and then through the article of commerce. The second end (17) is sized and shaped to prevent the tag from being pulled off the filament (19). The fastener (13) is made of plastic and includes an activating device …
Read the whole patent
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 3, 1998 and granted January 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2020.
- 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.