Trailer for transporting tanks
CA 2226280 C · Owner: Macdonald, Murray · Inventors: Macdonald, Murray
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trailer for moving large oblong objects which objects are normally oriented so that the longer length is oriented vertically notably as in oil storage tanks located at well sites. The trailer comprises a load bed which tips into a vertical position adjacent the object. When the load bed is in the vertical position the rear end of the load bed contacts the ground and lift plates attached to the rear end of the load bed extend along the ground. The trailer is then backed up against the object and the lift plates slide under the object. One or more arms are activated to clamp the object against the bed allowing it to be lowered with the bed to a horizontal position for transport.
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 January 7, 1998 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2020.
- 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.