Temperature controlled electrical receptacle
CA 2117406 C · Owner: Patrick, Darcy · Inventors: Patrick, Darcy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A temperature responsive electrical receptacle has a housing with slots for receiving prongs of an electrical plug electrical contacts in the, housing adjacent each slot for engagement with a prong and a terminal associated with each contact for connecting each contact to an electrical conductor, a switch between one of the contacts and its associated terminal and a temperature sensor for closing the switch when the ambient temperature is at or below a predetermined set temperature and opening the switch when the ambient temperature is above the set temperature.
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 July 25, 1994 and granted May 9, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2016.
- 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.