Triple axle trailer
CA 1109502 A · Owner: Columbia Trailer Co. Ltd. · Inventors: Copes, Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A triple axle trailer comprises a forward axle assembly and a pair of spaced-apart rear axle assemblies. A pair of substantially parallel main walking beams extend, longitudinally between the forward axle assembly and the rear axle assemblies. A pair of longitudinally extending rear walking beams interconnect the rear axle assemblies. A rear connecting member is pivotally connected to the main walking beams and the rear walking beams. A forward connecting member extends between the main walking beams near the forward axle. A resilient bushing yieldably connects the forward connecting member to each main walking beam permitting limited independent pivoting of the main walking beams about the …
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 September 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 1998.
- 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.