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Expired Canadian patentCanada

Use of adenosine, hypoxanthine and ribose-containing solution for improved protection of the heart during surgery

CA 1317225 C · Owner: Ely, Stephen W. · Inventors: Ely, Stephen W.; Lasley, Robert D.; Mentzer, Robert M. Jr.

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

The invention relates to an improved cardioplegic solution for reducing ischemic damage to the heart during operations and/or transplantations. The invented solution contains adenosine hypoxanthine and, ribose in addition to the electrolytes contained in standard cardioplegic solutions.

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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 May 4, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 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.
FiledOctober 5, 1987
GrantedMay 4, 1993
Term endedMay 4, 2010
Patent numberCA 1317225 C
Classification (IPC)A61K31/70 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedOct 5, 1987Patent grantedMay 4, 1993Term endedMay 4, 2010

Sources & verification

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