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Expired Canadian patentCanada

Fuel stabilization

CA 1320138 C · Owner: Commonwealth Of Australia (The) · Inventors: Solly, Richard; Power, Alan; Arfelli, William

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

Distillate fuel is stabilized against degradation during storage by inserting into storage tanks solid materials containing polar sites to enable polar condensation of the fuel constituents active in degradation. Polyether or polyester polyurethane open cell foams are the prime solid stabilizers proposed.

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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 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 13, 2010.
  • 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 27, 1987
GrantedJuly 13, 1993
Term endedJuly 13, 2010
Patent numberCA 1320138 C
Classification (IPC)B01D15/00 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJuly 27, 1987Patent grantedJuly 13, 1993Term endedJuly 13, 2010

Sources & verification

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