An apparatus and method for capturing and projecting an image of a cart
CA 2283382 C · Owner: Ballantyne, William John · Inventors: Ballantyne, William John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inspection apparatus is located at a check-out desk for acquiring and displaying a still image, of portion of a moving shopping cart the image being immediately available for viewing by the, cashier for purposes of inspection. Images are also sequentially stored along with corresponding, date/time/desk information to create a record that may be retained for an arbitrary period of time. The apparatus comprises a sensor for detecting the presence and longitudinal reference position, of a shopping cart an electronic camera, a short-term image storage buffer a , medium-term, image store, an image display device electronic logic to manage the timing of image acquisition, and display, …
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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 October 4, 1999 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2021.
- 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
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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.