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Expired Canadian patentCanada

Mobile transport for fluid cargo

CA 1163961 A · Owner: American Carrier Equipment Inc. · Inventors: Sweet, David L.; Sweet, Philip J.; Hamlet, Buck C.

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 wheel-supported, fluid-tight top filling, rear, discharge cargo box having a door pivotally supported in suspension for closing the rear discharge opening a hydraulically actuated latching mechanism for con trolling the operation of the door and a drag chain totally confined within the cargo box characterized by a pair of horizontally spaced, endless chain members disposed in horizontally spaced vertical planes and a discontinuous series of drag bars extended between the lower runs of the chain members for the drag chain defining a load receiving opening between the opposite ends of the series for facilitating a top-loading of the cargo box.

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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 March 20, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2001.
  • 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 23, 1981
GrantedMarch 20, 1984
Term endedMarch 20, 2001
Patent numberCA 1163961 A
Classification (IPC)B60P1/36 +1 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedApril 23, 1981Patent grantedMarch 20, 1984Term endedMarch 20, 2001

Sources & verification

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