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Expired Canadian patentCanada

Process for the production of 2,4-difluoro-6-amino-s- triazine

CA 1096867 A · Owner: Ciba-Geigy Ag · Inventors: Riat, Henri; Hegar, Gert

CIPO record

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Abstract From the Canadian patent

Case 1-11547/=, Process for the production of 2,4-difluoro-6-aminos-triazine, Abstract of the Disclosure The invention provides a process for the production of 2,4-difluoro-6-amino-s-triazine, which comprises reacting cyanuric fluoride in aqueous solution with ammonia or an ammonium salt, at a temperature between -5c and +10C and a pH value between 7.25 and 9.

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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 March 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 16, 1979
GrantedMarch 3, 1981
Term endedMarch 3, 1998
Patent numberCA 1096867 A
Classification (IPC)C07D251/44 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJan 16, 1979Patent grantedMarch 3, 1981Term endedMarch 3, 1998

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