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Expired Canadian patentCanada

Fuel additives and fuel containing soluble platinum group metal compounds anduse in internal combustion engines

CA 1305607 C · Owner: Bowers, Wayne E. · Inventors: Sprague, Barry N.; Bowers, Wayne E.

CIPO record

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Abstract From the Canadian patent

The invention provides a gasoline and diesel fuel additive composition comprising solutions of a fuel-soluble platinum group metal compound in a solvent miscible in the diesel, the platinum group metal complex being present in an amount sufficient to supply from 0.01 to 1.0 parts per million of the platinum group metal when added to a predetermined amount of fuel. Preferred solvents are oxygenated hydrocarbons such as ethanol, tetrahydrofuran, and methyl tertiary butyl ether and will preferably be employed in amounts of less than 5% of the weight of the gasoline to provide oxygen and the metal at a weight ratio of from 1,000:1 to 100,000:1. Expecially preferred compounds are those of 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

  • Granted July 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 2009.
  • 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 2, 1985
GrantedJuly 28, 1992
Term endedJuly 28, 2009
Patent numberCA 1305607 C
Classification (IPC)C10L1/30 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedDec 2, 1985Patent grantedJuly 28, 1992Term endedJuly 28, 2009

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