Patent Yard Sign in
Expired Canadian patentCanada

Heart valve with dog-leg pivot

CA 1190002 A · Owner: Hemex, Inc. · Inventors: Klawitter, Jerome J.

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

A heart valve having a pair of leaflets which are guided between their open and closed positions by guides extending outward and received in dog-leg shaped depressions. The depressions each have a downstream section, which angles outward from a centerline plane of the valve body and a connected vertical upstream section. In the closed position the guides reside in intermediate locations to unload the force between the guides and the depression walls.

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 July 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 12, 1983
GrantedJuly 9, 1985
Term endedJuly 9, 2002
Patent numberCA 1190002 A
Classification (IPC)A61F2/24

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 12, 1983Patent grantedJuly 9, 1985Term endedJuly 9, 2002

Sources & verification

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