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Expired Canadian patentCanada

Adenosine derivatives

CA 1320195 C · Owner: Evans, Brian · Inventors: Evans, Brian

CIPO record

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Abstract From the Canadian patent

Compounds of formula (I), (I) (I), wherein X represents a hydrogen or chlorine atom or a methyl group; and R represents a cycloalkyl or cycloalkenyl ring containing 5 to 8 carbon atoms which ring is substituted by a hydroxy group and, is optionally substituted by a C1-6 alkyl group and salts and solvates thereof. The new compounds have been found to exhibit activities such as an anti-lipolytic action. Processes for preparing the compounds of formula (I) and compositions containing them are also described.

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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 July 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 13, 2010.
  • 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 22, 1988
GrantedJuly 13, 1993
Term endedJuly 13, 2010
Patent numberCA 1320195 C
Classification (IPC)C07H19/16 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 22, 1988Patent grantedJuly 13, 1993Term endedJuly 13, 2010

Sources & verification

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