Anti-pickpocket alarm
CA 2009889 C · Owner: Johnson, Thomas · Inventors: Johnson, Thomas; Yannotti, Julian J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An audible alarm device to alert a person that his wallet or the like has been stolen from his person the alarm being con-, cealed within the wallet and tethered to the person carrying it. The wallet alarm sounds when the wallet is removed far enough to tighten the tether, which action disconnects it from the wallet and activates the alarm. In another embodiment a second alarm, concealed on the person or in a handbag is also activated simultaneously when the tether is pulled, alerting the wearer as well as the thief.
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 13, 1990 and granted September 20, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 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.