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Expired Canadian patentCanada

Radio frequency suppression for fuel pump

CA 1331780 C · Owner: Electro-Mechanical Products, Inc. · Inventors: Burgess, James P.; Moy, Harold

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 end cap for a fuel pump provides suppression of radio frequency noise generated by the motor of the pump. The end cap includes radio frequency suppression circuitry disposed therewithin and is configured so as to be a direct replacement for conventionally utilized end caps.

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 August 30, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 30, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 18, 1989
GrantedAugust 30, 1994
Term endedAugust 30, 2011
Patent numberCA 1331780 C
Classification (IPC)H05K9/00 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJan 18, 1989Patent grantedAug 30, 1994Term endedAug 30, 2011

Sources & verification

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