Intermittent, low bandwidth, wireless data network and method of operation thereof
CA 2275270 A1 · Owner: Shah, Nitin Jayant · Inventors: Shah, Nitin Jayant; Rohrbach, William Russell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For use in a wireless network, an alarm system and method of operation thereof. In one embodiment the alarm, system includes: (1) a local transceiver that in response, to a received stimulus, establishes a wireless link of diminished bandwidth to a wireless central monitoring station in the wireless network and (2) a local controller coupled to the transceiver for bidirectional communication therewith, that receives commands from the wireless central monitoring station via the wireless link.
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 June 16, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 16, 2021.
- 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.