Method for sorting tableware of restaurant, tableware used for the same method, adjusting apparatus and tableware sorting apparatus
CA 2133891 C · Owner: Shimamura, Chikara · Inventors: Kobayashi, Masamitsu; Shimamura, Chikara
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is provided to automate an adjusting job of a restaurant and to realize automatic sorting of tableware and to improve an operating efficiency of a restaurant job. Resonance tags are mounted on bottoms of plates of the tableware in which meals are dished up. The plates are placed on a tray, and the tray is placed on a tray placing position of an adjusting apparatus. A tag reader is buried in a lower portion of the tray placing position, and transmitting antennas and a reception antenna are superposed to form the tag reader. In this case when, radio waves of a plurality of frequencies are oscillated from the transmission antennas, different echo waves are oscillated from the …
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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 7, 1994 and granted April 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2016.
- 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.