Mobile telecommunications device having multiple directory number capability
CA 2320635 A1 · Owner: Lucent Technologies Inc. · Inventors: Dhawan, Perminder; Bijanki, Ramakrishna; Shelhamer, Kenneth Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile telecommunications system includes within a serving system database entries that associate the identifier of a mobile unit which could , be a, cellular telephone or a personal communications service (PCS) device with a, plurality of directory numbers. The mobile unit identifier may be a mobile identification number (MIN) or international mobile service identifier (IMSI) for, example. The system may store this association within a home location register (HLR), within a mobile switching center (MSC) or in both. In the process of, terminating a telephone call the system employs supplemental information to determine which of the plurality of directory numbers associated with the …
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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 September 26, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 26, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2022.
- 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.