Cardiotonic tricyclic oxazolones
CA 1329601 C · Owner: Jones, Winton D. · Inventors: Jones, Winton D.; Claxton, George P.; Schnettler, Richard A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to tricyclic oxazolones of the formula, wherein, Q is a divalent sulfur or oxygen atom; one of X and Z is an oxygen atom and the other is an imino group; and, n is O or the integer 1 or 2; which enhance myocardial contractile force and are useful as cardiotonics in the treatment of heart failure.
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 May 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.