Apparatus for informing parking position
CA 2105368 A1 · Owner: Saito, Toshiyuki · Inventors: Aoshi, Kazuhisa; Itoh, Hisatoshi; Saito, Toshiyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for informing a parking position of an automobile has a mat switch which is disposed in a predetermined positional relationship within a parking space and which has electric contacts embedded therein for being closed when depressed under a weight of the automobile. A transmitter is disposed in the mat switch and transmits radio wave signals when the electric contacts are closed. A receiver is disposed away from the mat switch and receives the radio wave signals to give necessary information.
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 1, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2015.
- 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.