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Expired Canadian patentCanada

Elimination of capacitive couplings

CA 262425 A · Owner: The Hazeltine Corporation · Inventors: Harold A. Wheeler

CIPO record

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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 July 6, 1926. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 1943.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJuly 6, 1926
Term endedJuly 6, 1943
Patent numberCA 262425 A
Classification (IPC)H03F

Timeline

Timeline From CIPO dates

192719291931193319351937193919411943Patent grantedJuly 6, 1926Term endedJuly 6, 1943

Sources & verification

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