Money clip with light sensitive detector
CA 1111927 A · Owner: Matlin, Joel · Inventors: Lekhtman, Gregory
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an electronic detection and transmission system known in the art as a money clip. Presently available such money clips are pressure sensitive and transmit initiating signals on detection of a decrease in pressure. Such systems have disadvantages, and the present system overcomes certain of the disadvantages by providing a system wherein detection is accomplished by a light sensitive means such as a phototransistor. In accordance with the invention the electronic, circuitry is contained in a housing having a top surface. The phototransistor is disposed below an opening in the top surface which is preferably centered on the top surface. When the opening is uncovered, …
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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 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 1998.
- 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.