Messaging system providing flexible roaming and method therefor
CA 2245874 A1 · Owner: Willard, David Frank · Inventors: Kuznicki, William Joseph; Eaton, Eric Thomas; Willard, David Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A message transmission system (100) and method for providing flexible roaming to a receiving device (126) which includes a code memory (422) which stores a plurality of addresses of a first type (1202) to enable reception of messages within a local geographic area, and at least one address of a second type (1214) to enable reception of messages within a wide geographic area. The message transmission system (100) includes a first transmitter (SSID1) which transmits the plurality of addresses of the first type with a message associated therewith within the local geographic area a controller (204) , which controls conversion of the plurality of addresses of the first type to the at …
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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 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 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.