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Expired Canadian patentCanada

Electronically controlled carburetor

CA 2224755 C · Owner: Tecumseh Products Company · Inventors: Carpenter, Todd L.

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

The present invention involves a carbureted fuel system for an internal combustion engine for small utility implements. The engine includes a crankcase with a cylinder bore. The crankcase rotatably supports a crank shaft having a flywheel and a magnet disposed on an outer periphery of the flywheel. The crankshaft is also connected to a reciprocating piston disposed in the cylinder bore. A cylinder head is attached to the crankcase over the cylinder bore and a carburetor is disposed on the, cylinder head. The carburetor is in communication with a fuel supply and an air inlet. The carburetor includes a mixing chamber in which the fuel and air are mixed together and then introduced into the …

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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

  • Filed December 12, 1997 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 12, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2019.
  • 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 12, 1997
GrantedMay 8, 2001
Term endedDecember 12, 2017
Patent numberCA 2224755 C
Classification (IPC)F02M7/10 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 12, 1997Patent grantedMay 8, 2001Term endedDec 12, 2017

Sources & verification

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