Patent Yard Sign in
Expired Canadian patentCanada

Acylaminoalkanoyl compounds

CA 1295333 C · Owner: Gordon, Eric M. · Inventors: Gordon, Eric M.

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

New compounds are disclosed having the formula, wherein Y is oxygen or sulfur and R1 R2, R3, R4, and R5 are as defined herein. These new compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity and depending upon the selection of R1 may also be useful as analgesics due to their enkepahlinase inhibition activity.

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 February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 27, 1986
GrantedFebruary 4, 1992
Term endedFebruary 4, 2009
Patent numberCA 1295333 C
Classification (IPC)C07C271/28 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJan 27, 1986Patent grantedFeb 4, 1992Term endedFeb 4, 2009

Sources & verification

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