Location-dependent cellular service profile
CA 2195487 C · Owner: Buhrmann, Michael · Inventors: Sze, Elaine I.; O'Leary, Eamon; Buhrmann, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved communication service methods operate in conjunction with a wireless communications network that includes a plurality of cells microcells, and/or picocells. A, user zone is defined as including one or more cells microcells, picocells, and/or one or, more cell microcell, and/or picocell sectors. A first set of communication features are provided within the user zone, and a second set of communication features are provided outside the user zone. According to an embodiment disclosed herein a mobile telephone, switching office (MTSO) coupled to the user zone, stores a user zone profile identifying the cells, picocells, microcells, picocell sectors microcell sectors, and cell sectors, …
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 January 20, 1997 and granted October 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 20, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 2019.
- 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.