Operator with transmitter storage overwrite protection and method of use
CA 2486355 A1 · Owner: Murray, James S. · Inventors: Murray, James S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An operator (32) with transmitter overwrite protection is used with a plurality of different transmitters (40 42, 44). Each type of transmitter has at least one command button that when actuated generates a signal which includes at least a transmitter identifying code. The operator includes a receiver (170) capable of receiving the signal from any of the plurality of transmitters and a memory device (62) that has a plurality of storage locations (63a-f). A controller (60) is connected to the receiver and the controller stores each transmitter identifying code in a corresponding storage location. The controller overwrites one of the transmitter identifying codes in a corresponding …
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 April 5, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 5, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 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.