Pager-based controller
CA 2278550 A1 · Owner: Gelbien, Lawrence · Inventors: Gelbien, Lawrence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pager-based controller including at least one pager configured to receive a signal from a remote location, the at least one pager being further configured to provide an output to change an on-off state of an external electrical component; a heater unit and a fan unit to maintain a predetermined temperature range within the pager-based controller; a power supply for supplying a required AC voltage and DC voltage to electrical components within the pager-based controller; a latching relay electrically connected to the at least one pager; an interface unit electrically connected to the at least one pager and the latching relay, the interface unit configured to receive the output …
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 21, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2020.
- 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.