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Expired Canadian patentCanada

Multi-section power capacitor with all-film dielectric

CA 1195394 A · Owner: Westinghouse Electric Corporation · Inventors: Pruett, Michael D.; Thiel, Peter H.; Mercier, George E.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An all film power capacitor in which the sections have extended electrode foils and relatively large area edge connections of deposited metal and the space factor of the section winding is relatively high.

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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 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 9, 1982
GrantedOctober 15, 1985
Term endedOctober 15, 2002
Patent numberCA 1195394 A
Classification (IPC)H01G4/30 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedAug 9, 1982Patent grantedOct 15, 1985Term endedOct 15, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.