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Expired Canadian patentCanada

Capacitance void meter

CA 770286 A · Owner: Bell, Rodney P. · Inventors: Bell, Rodney P.

CIPO record

Overview

Drawings and full text

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

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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 24, 1967. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 24, 1984.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 2, 1966
GrantedOctober 24, 1967
Term endedOctober 24, 1984
Patent numberCA 770286 A
Classification (IPC)G01R27/26 +2 more

Timeline

Timeline From CIPO dates

196719691971197319751977197919811983Application filedDec 2, 1966Patent grantedOct 24, 1967Term endedOct 24, 1984

Sources & verification

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