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Expired Canadian patentCanada

Trihaloallyl derivatives having anti-fungal and preservative activities

CA 1165327 A · Owner: Sankyo Company, Limited · Inventors: Morisawa, Yasuhiro; Konishi, Kiyoshi; Kataoka, Mitsuru

CIPO record

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Abstract From the Canadian patent

1,1,2-triiodo-1-propene and 1-bromo-1,2-diiodo 1-propene derivatives having a formyloxy alkanoyloxy, alkoxycarbonyloxy, alkoxycarbonylalkoxy phenoxycarbonyl-, alkoxy or benzyloxycarbonylalkoxy group at the 3- position are valuable anti-fungal and preservative agents having good heat and light stability.

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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 April 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2001.
  • 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 11, 1980
GrantedApril 10, 1984
Term endedApril 10, 2001
Patent numberCA 1165327 A
Classification (IPC)C07C69/62 +2 more

Timeline

Timeline From CIPO dates

1981198419871990199319961999Application filedJuly 11, 1980Patent grantedApril 10, 1984Term endedApril 10, 2001

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