Reactively coupled elements in circuits on flexible substrates
CA 2283503 C · Owner: Precision Dynamics Corporation · Inventors: Beigel, Michael L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An RFID circuit for incorporation in an identification device which includes a polymeric substrate (12), the circuit being formed or integrally connected with said substrate whereby the substrate becomes a component of the RFID circuit. An embodiment of the circuit includes circuit elements (10 14) , printed or attached to opposite sides of the substrate utilizing the resistance of the substrate in a reactive or inductive circuit.
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 March 3, 1998 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2020.
- 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.