Consumption recording system for remote reading
CA 2229638 C · Owner: Perthold, Rainer · Inventors: Gerhauser, Heinz; Perthold, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A consumption recording system affixed to a wall comprises a consumption recording device and a radio module which is, connected to the consumption recording device. A microstrip antenna is connected to the radio module. The microstrip antenna is placed within a non-metallic casing cover of the consumption recording device in such a way that the main radiation direction of the microstrip antenna is directed perpendicularly away from the wall.
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 September 17, 1996 and granted October 10, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2018.
- 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.