Stabilized article surveillance responder
CA 2084916 C · Owner: Fisher, Scott H. · Inventors: Fisher, Scott H.; Sensiper, Samuel; Minasy, Arthur J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic article surveillance system responder which comprises an electrical responder circuit and a housing which mounts the circuit on an article to be protected. The housing is arranged to support the circuit in such a manner that a dielectric region is formed between the circuit and the article. An electrically conductive plate is also held by the housing on the opposite side of the dielectric region from the circuit to isolate the circuit from the effects of metal objects on which the responder is mounted. The housing is flared so that it can be mounted on an article in proper orientation.
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 December 9, 1992 and granted May 6, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2014.
- 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.