Converter apparatus
CA 1138041 A · Owner: Westinghouse Electric Corporation · Inventors: Johnson, Frederick O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
48.329, ABSTRACT OF THE DISCLOSURE, Converter apparatus including gate drive control of the stored energy type. Control logic arms the next controlled rectifier device to be gated a predetermined period of time following the gating of the immediately preceding controlled rectifier device in the gating sequence.
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 December 21, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 1999.
- 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.