Recyclable article protection
CA 1269737 C · Owner: Gill, Peter L. · Inventors: Boscoe, John J.; Gill, Peter L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of The Disclosure A resonant circuit-bearing tag, which is capable of causing an article protection system to give an alarm is provided with a, release liner surface. To permit removal of an article to which the tag is attached without causing an alarm a metal, foil-bearing label is adhered to the release liner surface of the tag. By virtue of the release liner on the tag the label is, susceptible of being peeled off the tag thereby restoring the, tag's ability to cause an alarm.
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
- Granted May 29, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 2007.
- 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.