Patent Yard Sign in
Expired Canadian patentCanada

2-substituted benzimidazole compounds

CA 1094074 A · Owner: Kanebo, Ltd. · Inventors: Nose, Takashi; Ito, Keizo; Yoshino, Koichiro

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Novel 2-substituted benzimidazole compounds of the formula:, (I), or, (II), wherein R1 is hydrogen halogen, lower alkyl or lower alkoxy, and R2 is hydrogen or lower alkyl with the proviso tht R1 and R2 are not both hydrogen simultaneously and when R1 is hydrogen, group or a methyl or an isobutyl group on the phenyl group; are useful as anti-inflammatory agents and/or analgesics.

Read the whole patent

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 January 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 20, 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.
FiledDecember 6, 1977
GrantedJanuary 20, 1981
Term endedJanuary 20, 1998
Patent numberCA 1094074 A
Classification (IPC)C07D401/04 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedDec 6, 1977Patent grantedJan 20, 1981Term endedJan 20, 1998

Sources & verification

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