Reduced cost automatic meter reading system and method using locally communicating utility meters
CA 2685205 A1 · Owner: Staver, Daniel Arthur · Inventors: Daum, Wolfgang; Staver, Daniel Arthur; Berkcan, Ertugrul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low cost and easy to assemble communicating utility meter provides selectable measurement, calibration display, and , communications means so as to be re-configurable based on several factors including; harmonic content of the power signal measured LCD , display alternatives, time of use measurements bandpass filter , settings, power quality measurements PLC communications , alternatives, radio frequency communications alternatives optical , communications alternatives, and hard wire communications alternatives.
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 August 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 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.