A switch with a thermoprotection
CA 2449531 A1 · Owner: Coppola, Antonio · Inventors: Coppola, Antonio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety switch, in particular for thermal protection of an electrical apparatus, comprises a container inside which means for activation of said switch is housed said means comprising a command key and a pair of contact carriers, that are movable and fixed respectively, and a thermoprotector device responsive to temperature variations in the environment to be controlled and adapted to act on the electric supply circuit of said apparatus depending on the perceived heat level. , Said movable contact carrier oscillates between two positions, an open position at which said contact carriers are separated from each other and respectively a closed position, at which said contact carriers are in …
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 November 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 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.