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Expired Canadian patentCanada

Wind-powered water-craft

CA 1190807 A · Owner: Belanger, Ernest · Inventors: Belanger, Ernest

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 wind-powered water craft is disclosed including, a seaworthy base which may either be a conventional dinghy or a specially-designed flat-bottomed hull similar in shape to a, dinghy. A cabin is supported in and over the central longitudinal portion of the base. Astern, the base is provided with an electric motor which is connected to a battery of the rechargeable type. The roof of the cabin is provided with a generator having an axially-connected wind-driven propeller which drives the latter. The generator is connected to the battery. A pair of keels are removably secured to the craft, one on each side.

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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 July 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 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.
FiledSeptember 22, 1982
GrantedJuly 23, 1985
Term endedJuly 23, 2002
Patent numberCA 1190807 A
Classification (IPC)B63H9/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedSep 22, 1982Patent grantedJuly 23, 1985Term endedJuly 23, 2002

Sources & verification

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