Utility metering
CA 1330579 C · Owner: Marsden, Derek Robert · Inventors: Marsden, Derek Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the method of monitoring the consumption of utilities in business premises, the premises are notionally divided into zones 10. Each contains a utility load 110 and metering means 114 to record consumption within the zone 10. Zones are notionally combined into groups. Analysis means 120 are provided to receive consumption data from the zones of a group to calculate total utility consumption within the group and to conduct further analysis on the consumption data. The analysis means 120 also supplies control data to the zones to control utility consumption.
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
- Granted July 5, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2011.
- 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.