Vertically adjustable trailer
CA 1325446 C · Owner: Ohlson, Kjell · Inventors: Ohlson, Kjell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vertically adjustable trailer comprises front link arms (4 5), which are, pivotally conntected between a traction vehicle (1) and the front end of the trailer (11), and rear link arms (15, 16) which are pivotally connected betweenthe rear end of the trailer (11) and a wheel suspension device (23). The front and rear link arms (4, 5 and 15, 16 respectively) are so arranged that they can be pivoted between a first position (Fig. 1) in which the front end of the trailerrests on the traction vehicle (1) and the wheels of the trailer are retracted under the loading space thereof, and a second position (Fig. 2) in which the loading, space rests on the ground between the traction vehicle (1) and …
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
- Granted December 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 2010.
- 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.