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Expired Canadian patentCanada

Oil additive and gasoline mixing device

CA 1287822 C · Owner: Toole, Ernest D. · Inventors: Toole, Ernest D.

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

A device for an oil additive to be mixed into a flowing stream of gasoline which includes an oil additive funnel with a small suction passageway in the apex of the funnel communicating with the interior of a gasoline feed pipe rigidly attached to the outside of the funnel the pipe having, a socket at its upper end to receive the nozzle of a gasoline pump hose and having a lower outlet end adapted to be placed in the fill pipe of a gasoline tank.

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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 August 20, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 26, 1988
GrantedAugust 20, 1991
Term endedAugust 20, 2008
Patent numberCA 1287822 C
Classification (IPC)B01F15/02

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMay 26, 1988Patent grantedAug 20, 1991Term endedAug 20, 2008

Sources & verification

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