Converter assembly for converting a drive-wheel tractor to a track-driven tractor
CA 2092364 A1 · Owner: Christianson, Peter J. · Inventors: Christianson, Peter J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A converter assembly for converting a drive-wheel-driven tractor into a track-driven tractor the assembly having its frame separate and unattached relative to the frame of the tractor and constructed and arranged, together with a continuous track to be, positioned beneath the drive-wheel of the tractor and, within the track, in cooperating position with the drive-wheel and track, to effectively extend the ground-engaging area of the tractor. A pair of transversely spaced, relatively light, plate members rotatably mount a pair of idler wheels one ahead and one, behind the drive-wheel within the track. A pair of alignment rollers are also rotatably mounted between the plate members in …
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 24, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 24, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2015.
- 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.