Wireless receiver
CA 2185864 C · Owner: Read, Clifford D. · Inventors: Read, Clifford D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless receiver having a first and second housings one of which contains a wireless signal transmission and receiving means. The other housing preferably contains a power supply and possibly a battery back-up for use in the event of a cut in the power supply. The two housings are hinged together. They are relatively movable between one position in which the two housings depend one from another so as to be mounted upon a vertical wall and another position in which the two housings are disposed one behind the other for supporting upon a horizontal surface. Preferably, in the position for mounting upon a wall, the two housings provide rear planar surfaces which are coplanar and in the …
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 September 18, 1996 and granted December 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2018.
- 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.