Shopping trolley
CA 2595641 C · Owner: Sonnendorfer, Elvira · Inventors: Sonnendorfer, Horst; Wieth, Franz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a trolley comprising an element for holding and releasing a token, said element comprising a sensor that detects whether the trolley comprising the element for holding and releasing the token is pushed inside another trolley. If this is the case the element for holding and , releasing the token activates the immobiliser and releases the token. In order to use the trolley, a token must be inserted into the element for holding and releasing the token, thus deactivating the immobiliser.
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 January 24, 2006 and granted November 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 24, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.