Method for a radiotelephone to scan for alternate radiotelephone systems
CA 2428007 A1 · Owner: Howell, Stephen Andrew · Inventors: Hefner, Eric J.; Otting, Marcia J.; Howell, Stephen Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for allowing a radiotelephone to scan for alternate radiotelephone systems, where each cellular radiotelephone system is within a corresponding geographic area and each cell has a base station providing paging and voice communication, includes a first step (304) of registering the radiotelephone on a radiotelephone system. A next step includes establishing (306) whether alternate technology scanning has been enabled for the radiotelephone. If alternate technology scanning is disabled the radiotelephone receives paging , messages from the base station and acknowledges the paging messages addressed to the radiotelephone (316). If alternate technology scanning is enabled …
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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 November 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2023.
- 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.