Toy device using through-the-body communication
CA 2425518 A1 · Owner: Mattel, Inc. · Inventors: Grzesek, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wrist unit (11) includes a transmitting circuit (47) capable of producing coded radio frequency to the users body and causes the encoded signal (52) to propagate through the users (20) body as a transferring medium. A cooperating device (43) includes a receiving contact (12) which the user touches to impart the body signal. A receiver (12) and decoder (54) within the cooperating device identify the user and enable a gate circuit )55) which in turn opens access to the user (20) of the microprocessor (50) and cooperating circuitry (41) within the unit (11). In the absence of a code match the access to the , cooperating device is refused.
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 17, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2024.
- 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.