Collapsible trailer
CA 2228341 C · Owner: Beaudoin, Richard · Inventors: Beaudoin, Maurice; Beaudoin, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The collapsible bicycle trailer comprises a chassis and wheels. The chassis includes an upper frame assembly having a front end pivotally connected to the front, end of a lover frame assembly and a back frame unit including a pair of appositely, disposed back frame members. Each back frame member has an upper end pivotally connected to the rear end of the upper frame assembly and a lower end removably, securable to the rear end of the lower frame assembly. The back frame unit is pivotable around the upper end of the back frame members between a folded position, where the upper frame assembly is rotated towards the lower frame assembly for folding the chassis into a compact position 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
- Filed February 26, 1998 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.