Trailer
CA 2042644 A1 · Owner: Magee, Nolan L. · Inventors: Magee, Nolan L.; Magee, Nolan L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trailer 3 adapted to be towed by an engine driven tractor 2 has a chassis or frame 1, dual axle wheels 5 and a load carrying deck 4. An internal combustion engine 13 is mounted on the chassis or frame 1 and this drives the wheels 5 of the trailer. The motor 13 is mounted on the underside of the deck 4. Synchronisation means are provided so that in use the operation of the motor 13 mounted on the trailer 3 is synchronised with the operation of the engine in the tractor 2. The invention also relates to the trailer 3 when attached to a tractor 2.
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 May 15, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 2013.
- 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.