Selective call device and method for battery saving during information services
CA 2282018 C · Owner: Kampe, Frederick Loring · Inventors: Smith, Scott Christopher; Deluca, Michael J.; Nelms, Robert Nathan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A selective call device (130) has a receiver (204) for receiving a selective call signal including an address (312) and a topic sub-address (504) indicative of a subscribed information a processor (212, 214) for, correlating the address (312) in the selective call signal to determine when the selective call signal is directed thereto a decoder (212), in, response to the processor (212 214) determining that the selective call signal is directed thereto, for decoding the topic sub-address (504) to determine when the selective call signal includes the subscribed information, and a battery saver, coupled to the receiver (204) for, initiating battery saving when the address (312) does not …
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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 February 12, 1998 and granted August 20, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2020.
- 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.