Alarm device for wallets and the like
CA 1292295 C · Owner: Tone, James · Inventors: Tone, James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wallet is disclosed which incorporates an electrical alarm circuit for signalling that eg a credit card has not been properly returned to its compartment in the wallet. The electrical current is transferred from compartment to compartment, and from the battery and buzzer portion by, means of contact pads and zones which come together when the wallet is closed. The need to conduct electricity through the hinge area is eliminated.
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 November 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 2008.
- 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.