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Expired Canadian patentCanada

Diesel fuel composition

CA 1196499 A · Owner: Ethyl Corporation · Inventors: Hinkamp, James B.

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 cetane number of diesel fuel is increased by the addition of an aliphatic hydrocarbyl nitro nitrate additive such as 2-methyl-2-nitro-1propanol nitrate (ester).

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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 November 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 15, 1983
GrantedNovember 12, 1985
Term endedNovember 12, 2002
Patent numberCA 1196499 A
Classification (IPC)C10L1/22 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedAug 15, 1983Patent grantedNov 12, 1985Term endedNov 12, 2002

Sources & verification

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