Bill validator of master-slave type and method for download of validator
CA 2233646 C · Owner: Kuroiwa, Koji · Inventors: Kuroiwa, Koji; Ohya, Toitsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bill validator of master-slave type is provided for easy downloading. A master discriminating circuit (40) is switched from a validating mode to a master mode by operation of the master mode switch (48) to forward the download information to a slave discriminating circuit (40) according to the download program. The slave discriminating circuit (40) is switched from a validating mode to a slave mode by operation of the slave mode switch (49) so that the download information from the master discriminating circuit (40) is written according to the download program in the writable memory (43) of the slave discriminating circuit (40) via the download output terminal (44) of the master …
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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 31, 1997 and granted April 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2019.
- 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.