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Expired Canadian patentCanada

Device for inserting rare earth particles into a combustion chamber

CA 2059546 C · Owner: Markou, Miltiathis · Inventors: Markou, Miltiathis

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A device for introducing a small amount of a rare earth mixture or composition in the combustion chamber of an combustion engine (1) comprises a container (4) containing a dry, air-permeable filling (5) of rare earth-containing fibres and/or powder, wherein the container (4) communicates via an opening (11) with the atmosphere and via a suction line (8) with a vacuum line (2), which is connected to the combustion chamber of the engine (1).

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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 May 17, 1991 and granted April 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 17, 1991
GrantedApril 4, 2000
Term endedMay 17, 2011
Patent numberCA 2059546 C
Classification (IPC)F02M27/02 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMay 17, 1991Patent grantedApril 4, 2000Term endedMay 17, 2011

Sources & verification

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