Method for simultaneously controlling and programming a plurality of transponders and device for implementing this method
CA 2274014 A1 · Owner: Pagnol, Frederic · Inventors: Pagnol, Frederic; Dertadian, Saak
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for simultaneously memorising a batch of data in a plurality of transponders consisting in: emitting radiation (I) supplying energy to the transponders; collecting identification data transmitted by the transponders (II) during their first transmitting window; determining whether these data are dispersed; if this is the case interrupting the radiation to deactivate all the transponders; re-starting the external transmitter and collecting anew the identification data transmitted by the transponders; and after verifying that these data are not dispersed sending via the transmitter in a reception window of the transponders a batch of data which are …
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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 December 4, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 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.