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Expired Canadian patentCanada

Motor boat

CA 1107572 A · Owner: Gaston, William D. · Inventors: Gaston, William D.

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

There is disclosed a motor boat having a propulsion and steering system which includes a propeller mounted on a housing which is supported from the boat transom for rotation about a generally vertical axis to steer the boat, and for reciprocation along such axis to permit the propeller to be raised and lowered between normal operating, retracted and trim positions and where-, in a motor is mounted in the hull and connected to the propeller shaft by a drive shaft extending sealably through a hole in the hull and having joints at its opposite ends to enable the housing to be so moved.

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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 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 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.
FiledOctober 2, 1978
GrantedAugust 25, 1981
Term endedAugust 25, 1998
Patent numberCA 1107572 A
Classification (IPC)B63H21/30 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedOct 2, 1978Patent grantedAug 25, 1981Term endedAug 25, 1998

Sources & verification

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