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Expired Canadian patentCanada

Tracheal suction pump designed primarily for life-saving purposes

CA 1069761 A · Owner: Hesse, Ruth Lea · Inventors: Grane, Christian

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

A suction pump is provided which is useful to remove mucus blood, vomit etc. from the mouth, throat or air ducts of an unconcious person. The invention is particularly useful as a tracheal suction pump to be used at the scene of an accident and during transport of a person to a hospital. The pump comprises a pump assembly having a suction chamber with an outlet leading to the ambient atmosphere and an inlet communicating with a secretion-receiving reservoir with attached tubing permitting suction of secretion primarily from, the air ducts of an unconcious patient. The pump assembly comprises a housing enclosing the suction chamber and closed at one end by means comprising a first annular …

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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 January 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 15, 1980
Term endedJanuary 15, 1997
Patent numberCA 1069761 A
Classification (IPC)F04B43/06 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 15, 1980Term endedJan 15, 1997

Sources & verification

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