Method and apparatus for monitoring the provision of a utility
CA 2456468 A1 · Owner: Milland, Robert John · Inventors: Milland, Robert John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of remotely monitoring the provision of a utility at a plurality of locations. The method comprises the steps of remotely interrogating control devices at their locations with each of the devices having a unique address. Each of the interrogated devices responds with a return signal which can be processed to obtain information concerning the usage of the utility at each of the locations.
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 7, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2024.
- 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.