Swivel bunked double trailers for containers
CA 2099969 C · Owner: Kleysen, Hubert T. · Inventors: Kleysen, Hubert T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A double lead-pup trailer assembly for container transport has swivel bunks enabling the container to be carried on the articulated trailers. The rear swivel bunk slides rotatably within a slot extending to the rear of the pup trailer allowing the container to be directly unloaded. The coupling means between the trailers is adjustable between a highway articulated driving relationship, and a backing up aligned relationship. One advantage is the gross vehicle weight and payload are improved. Another advantage is that the container more closely tracks the tractor and trailer wheels on turns thus providing more manoeuvrability and safety.
Read the whole patent
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 6, 1993 and granted December 29, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 6, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.