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Expired Canadian patentCanada

2,n.sup.6-substituted adenosines derivatives and methods of use

CA 1262898 C · Owner: Patt, William C. · Inventors: Hamilton, Harriet W.; Patt, William C.; Moos, Walter

CIPO record

Overview

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

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Abstract From the Canadian patent

Novel N6-substituted adenosines having desirable ratio of affinities at A1 or A2 receptors and highly desirable central nervous system and cardiovascular activities, such as analgesic, antipsychotic sedative, or antihypertensive as well as immunoinflammatory activity.

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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 November 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 14, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 25, 1985
GrantedNovember 14, 1989
Term endedNovember 14, 2006
Patent numberCA 1262898 C
Classification (IPC)C07H19/16 +1 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 25, 1985Patent grantedNov 14, 1989Term endedNov 14, 2006

Sources & verification

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