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Expired Canadian patentCanada

End plate for a ram-wing boat

CA 1305368 C · Owner: Jorg, Gunther W. · Inventors: Jorg, Gunther 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

An end plate is provided for a ram-wing boat having two airfoils (7-8) and (7a-8a), in the form of ailettes disposed at a distance from each other and in tandem at approximately the same height, which airfoils are connected with each other at their outer ends by flat end plates (1). Each end plate (1) is configured as a hollow body with an essentially trapezoidal cross section, and consists of upper chord (2) and lower chord (3) connected by planking (4 and 5) along the length thereof. To complete the static assemblage, ribs (6) which divide the hollow body into compartments (9) are disposed at a distance from each other in the hollow space of the end plate (1).

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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 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 2009.
  • 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 13, 1988
GrantedJuly 21, 1992
Term endedJuly 21, 2009
Patent numberCA 1305368 C
Classification (IPC)B63B1/32 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJuly 13, 1988Patent grantedJuly 21, 1992Term endedJuly 21, 2009

Sources & verification

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