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Canadian application, no grantCanada

Fuel delivery means for carburetors for internal combustion engines and method for installing same

CA 2123454 A1 · Owner: Boswell, George A. · Inventors: Boswell, George A.

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

In a carburetor for an internal combustion engine the improvement embodying an air, flow surface disposed strategically in a venturi or air flow passageway of the carburetor the air, flow surface providing enhanced air flow velocity characteristics over a region thereof relative to the free stream velocity over the air flow surface and an orifice located adjacent to the air flow surface in the vicinity of the region of enhanced air flow velocity so as to provide a vacuum signal through the orifice which corresponds substantially proportionally to the air flow velocity through the venturi or air flow passageway the vacuum signal being usable for improving fuel delivery characteristics to 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 May 12, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 12, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2016.
  • 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 12, 1994
GrantedNo grant recorded
Term endedMay 12, 2014
Patent numberCA 2123454 A1
Classification (IPC)F02M7/10 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedMay 12, 1994Term endedMay 12, 2014

Sources & verification

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