Trailer with articulated rear bogie
CA 2200350 C · Owner: Maltais, Robert · Inventors: Maltais, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trailer with articulated rear bogie. The said bogie has a forward part movably mounted on a pivot which extends vertically under the trailer. The bogie also has a block whose upper surface includes a curved groove of limited length. The block is positioned aft of the pivot and receives into its groove a vertical rod affixed to the bottom of the trailer so as to limit the pivoting movement of the bogie. The trailer has a locking device to hold the block so as to prevent the bogie from pivoting freely and a control device to engage the lock when the trailer is driven in reverse and to disengage the lock at all other times. Thus when the trailer is driven in reverse, the bogie is immobilized …
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 March 18, 1997 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2019.
- 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.