Multiple conductor indicator
CA 2491138 C · Owner: Klinger, Mark · Inventors: Kennedy, John; Novak, Tom; Klinger, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
One embodiment of the present invention provides a fuse having opened-fuse indication (20), which places two or more coils or conductors (24,26) in parallel and in thermal contact with an indicating material (22). The multiple conductors (24, 26) allow a lower level of current to produce sufficient heat or sufficient electrical resistance to transform the indicating material (22). The multiple conductors (24, 26) can also be made of a reduced diameter resulting in surge protection at a lower device temperature. The multiple conductor indicator in an embodiment includes a base material (35). First and second conductors (24,26) contact the base material (35). An indicating material …
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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
- Filed June 26, 2003 and granted May 21, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2025.
- 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.