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Expired Canadian patentCanada

Collapsible trailer

CA 1288119 C · Owner: Tetreault, Fernand L. · Inventors: Tetreault, Fernand L.

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 collapsible trailer having a platform made of two longitudinal sections which folds against each other along its central longitudinal axis. Two lateral panels are hingely mounted on each side of the platform to fold over the platform. Removable front and rear panels maintain the lateral panels in their upright position and prevent the platform from folding. Flanges along the longitudinal axis of the platform abut against each other to keep the platform flat in its load carrying position. Beams along the lateral sides of the platform also abut against beams secured to the lower edge of the lateral panels to keep the panels from collapsing outwardly. A towing bar is hingely mounted to the …

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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 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 6, 1987
GrantedAugust 27, 1991
Term endedAugust 27, 2008
Patent numberCA 1288119 C
Classification (IPC)B62B1/04 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedApril 6, 1987Patent grantedAug 27, 1991Term endedAug 27, 2008

Sources & verification

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