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Expired Canadian patentCanada

Antiglaucoma agents

CA 1084841 A · Owner: Abbott Laboratories · Inventors: Dren, Anthony T.; Bopp, Barbara A.

CIPO record

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Abstract From the Canadian patent

Abstract of the Disclosure A method of reducing intra-ocular pressure in mammalian patients comprising administering to a glaucoma patient a therapeutically effective amount of a compound of the formula, , wherein, in the C ring X is CH2, S, or NR4 where R4 is, H, loweralkyl loweralkenyl, loweralkynyl or loweralkanoyl; n is an integer of 0 to 3; m is an integer of 0 to 3 or the C, ring is a quinuclidine ring ; each R1 is loweralkyl, and, when taken together the substituents R1R1 form oxygen; R2 is a C1-C20 straight or branched chain alkyl cycloalkyl, or, wherein Y is a straight or branched chain alkylene group having from 1 to 10 carbon atoms, and each R5 R6 and R7 are, the same or …

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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 September 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 1997.
  • 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 26, 1977
GrantedSeptember 2, 1980
Term endedSeptember 2, 1997
Patent numberCA 1084841 A
Classification (IPC)A61K31/33 +1 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedJuly 26, 1977Patent grantedSep 2, 1980Term endedSep 2, 1997

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