Electrical ground isolation and secondary failure reduction detection and isolation
CA 2422948 C · Owner: General Electric Company · Inventors: Mcnally, Christopher Wade; Kumar, Ajith K.; Worden, Bret Dwayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for isolating electrical ground faults and secondary failures in an electrical system the system comprising an AC ground isolation state machine for detecting and isolating an AC ground a DC ground isolation state machine for detecting and isolating a DC ground a component failure isolation state machine for detecting and isolating a change in a resistance and a component failure early detection algorithm for determining a failure before using the state machines.
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 20, 2003 and granted September 25, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 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.