Method of transmitting electrical power
CA 2476512 C · Owner: Whidden, Robert H. · Inventors: Whidden, Robert H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is provided for reducing the stray noise associated with the transmission of the electrical power between a power source (62) and a target (64). The method includes the step of interconnecting the power source and the target (64) with a conductor (12). A shield (32 and 40) is positioned about the conductor (12) to prevent electromagnetic and radio frequency interference from passing therethrough. A low impedance path is provided for the stray noise to travel between a neutral point (Xo) of the power source and the isolated target (62).
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 4, 2003 and granted July 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2025.
- 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.