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Expired Canadian patentCanada

Solution for surgical irrigation

CA 1237988 A · Owner: The University Of Southern California · Inventors: Marshall, G. June; Snyder, Stephen J.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Abstract of the Disclosure An isomolar solution of glycerol and water containing glycerol in the amount of about 2.75 weight percent is provided as a non-cytotoxic non-hemolytic, non-viscid, non-conductive and optically clear surgical irrigation solution.

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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 June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 6, 1984
GrantedJune 14, 1988
Term endedJune 14, 2005
Patent numberCA 1237988 A
Classification (IPC)A61K31/04 +2 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedJuly 6, 1984Patent grantedJune 14, 1988Term endedJune 14, 2005

Sources & verification

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