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Canadian application, no grantCanada

Catalytic oxidation of alkanes

CA 2099229 A1 · Owner: Lyons, James E. · Inventors: Walker, Darrell W.; Hayes, Robert C.; Durante, Vincent A.

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

Process and apparatus are provided for oxidation of organic compounds in which a reaction zone is provided containing an open space, and a bed of solid granular catalyst an organic feedstock and oxygen are, passed in gas phase through the open space and then into contact with the catalyst bed, and reaction products are removed from the open space after relatively less contact with the catalyst and from at least one other, location after relatively greater contact with the catalyst. Greater yield of desired product may be obtained in such operation than in operation where all of the reaction products are removed after the greater contact with the catalyst. (S-88-012L CIP-1) DRJO716A.djp

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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 June 25, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 25, 1993
GrantedNo grant recorded
Term endedJune 25, 2013
Patent numberCA 2099229 A1
Classification (IPC)C07C31/04 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJune 25, 1993Term endedJune 25, 2013

Sources & verification

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