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Expired Canadian patentCanada

Phosphorus- and/or nitrogen-containing derivatives of sulfur-containing compounds, lubricant, fuel and functional fluid compositions

CA 1309705 C · Owner: Di Biase, Stephen A. · Inventors: Pialet, Joseph W.; Di Biase, Stephen A.; Scharf, Curtis R.

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Abstract From the Canadian patent

L-2351R, Title: PHOSPHORUS- AND/OR NITROGEN-CONTAINING DERIVA- TIVES OF SULFUR-CONTAINING COMPOUNDS, LUBRI- CANT, FUEL AND FUNCTIONAL FLUID COMPOSITIONS Abstract of the Disclosure, This invention is directed to phosphorusand/or nitrogen-containing derivative compositions useful particularly in fuels, and in lubricating and functional fluid compositions. The derivative compositions comprise a phosphorus- and/or nitrogen-containing derivative composition of sulfur-containing compounds prepared by the process comprising reacting (A) at least one sulfur composition from the group of, (A-1) compounds characterized by the structural formula, (I), wherein, R1, R2 R3 and R4 are each independent-, …

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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 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 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.
FiledNovember 4, 1987
GrantedNovember 3, 1992
Term endedNovember 3, 2009
Patent numberCA 1309705 C
Classification (IPC)C10M135/22 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedNov 4, 1987Patent grantedNov 3, 1992Term endedNov 3, 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.