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Expired Canadian patentCanada

Connector system for coupling a trailer suspension frame

CA 2279153 C · Owner: Ty-Crop Manufacturing Ltd. · Inventors: Mccrory, Kevin Richard

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 connector system for coupling a suspension frame device to the rear part of a transport trailer for use in distributing the weight of the load of the trailer to extra wheels and/or providing an effective attachment arrangement for connecting a second trailer behind the first trailer in tandem fashion. The connector system includes a part formed at the front of the suspension frame device which includes a rigid frame portion carried by an additional set or sets of wheels and the connector system further includes a second part formed integrally at the rear of the frame of the first trailer the two parts having mating guiding portions for properly aligning the suspension frame device with …

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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

  • Filed July 30, 1999 and granted June 20, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2021.
  • 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 30, 1999
GrantedJune 20, 2000
Term endedJuly 30, 2019
Patent numberCA 2279153 C
Classification (IPC)B62D53/08 +1 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 30, 1999Patent grantedJune 20, 2000Term endedJuly 30, 2019

Sources & verification

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