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Expired Canadian patentCanada

A fuel composition for rectifying fuel gauge sending unit problems

CA 2514159 C · Owner: Chevron Oronite Company Llc · Inventors: Moore, Stephen M.

CIPO record

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Abstract From the Canadian patent

A unique combination of a certain poly(oxyalkylene) amine and a thiadiazole compound when employed as a fuel additive in a hydrocarbon fuel such as gasoline or diesel fuel will preclude fuel gauge sending units from sustaining sulfur-related corrosion damage or restore fuel gauge sending units particularly , silver-based fuel gauge sending units in vehicle fuel storage tanks to likenew , operational condition. Moreover, a method suitable for use in precluding fuel gauge sending units from sustaining sulfur-related corrosion damage or restoring silver-based fuel gauge sending units in gasoline or diesel vehicle fuel , storage tanks to like-new operational condition using 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 July 29, 2005 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 29, 2005
GrantedJuly 2, 2013
Term endedJuly 29, 2025
Patent numberCA 2514159 C
Classification (IPC)C10L1/22

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJuly 29, 2005Patent grantedJuly 2, 2013Term endedJuly 29, 2025

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