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Expired Canadian patentCanada

Emergency floatation device for watercraft

CA 1324538 C · Owner: Brundritt, Larry W. · Inventors: Brundritt, Larry W.

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 buoyant support for a vehicle suchs as a watercraft, snowmobile, car, truck, trailer or the like vehicle for travel on ice over a body of water or cargo, containers transported on ships comprises a rigid elongated support surface, and an inflatable member folded along its length in a substantially deflated condition to form a relatively compact resilient mass, secured to and overlaying the surface. A cover or the like retains the inflatable member in its folded overlaying condition. In an emergency the inflatable member is inflated to provide the buoyant support. In the folded condition the device may act as a fender for the watercraft.

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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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 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.
FiledSeptember 29, 1989
GrantedNovember 23, 1993
Term endedNovember 23, 2010
Patent numberCA 1324538 C
Classification (IPC)B63B43/14

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedSep 29, 1989Patent grantedNov 23, 1993Term endedNov 23, 2010

Sources & verification

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