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Expired Canadian patentCanada

Releasable airborne buoy

CA 1107153 A · Owner: Thomson-Csf · Inventors: Suppa, Vito

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 buoy capable of being dropped onto water from an aircraft, comprising a balloon which inflates during the descent through a forced intake of air through adjustable openings at the base of the balloon. Inside the balloon there is a flexable membrane allowing the air to enter through holes the, balloon remaining inflated to the maximum pressure encountered during the descent. Pockets with openings are traversed by the air and prevent the balloon from rotating during its descent.

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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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
  • 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 17, 1979
GrantedAugust 18, 1981
Term endedAugust 18, 1998
Patent numberCA 1107153 A
Classification (IPC)B63B51/02 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJuly 17, 1979Patent grantedAug 18, 1981Term endedAug 18, 1998

Sources & verification

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