Actuator and communication systems
CA 1338675 C · Owner: Murdoch, Graham Alexander Munro · Inventors: Murdoch, Graham Alexander Munro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed en actuator device adapted to be in the form of a transponder for influence by a magnetic powering field, the device having an inductive means to receive a magnetic field to provide a signal to be rectified for supplying power to the actuator, the inductive coil being arranged to simultaneously transmit signals to an interrogator. The interrogator is adapted to radiate a magnetic field which is received by the actuator and to transmit data wherein the magnetic field includes magnetic modulation and the actuator is adapted to demodulate the magnetic field and interpret data obtained thereby.
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
- Granted October 22, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2013.
- 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.