Water metering system
CA 2452667 A1 · Owner: Smith, Wade W. · Inventors: Smith, Wade W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of monitoring the use of a resource such as water, gas, electricity or energy embedded in a fluid in a unit of a multi-tenant building occupied by a tenant or other consuming entity from the building management entity or owner the use of, the resource being monitored with monitoring technology having a substantial cost and installed by a resource servicing company. An agreement is established between the tenant or other consuming entity and the building management entity or owner including billing terms for the monitored resource(s). An agreement is established between the building management entity or owner and the resource servicing company whereby the resource servicing company …
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 December 9, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2025.
- 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.