Hydrostatic transmission caterpillar tread
CA 2209022 C · Owner: 9072-6399 Quebec Inc. · Inventors: Gignac, Guy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An all-terrain vehicle comprising in combination: a central frame with two parallel sides each comprising a toothed wheel forward two suspension tandem drives pivoting on a mounting on the side of the frame caterpillar treads running around the wheels and tandems without pre-tensioning a return wheel aligned with the tandems and positioning the treads. Each tread ideally comprises a pair of equally spaced elastomeric bands (38 40), lugs (33) equally spaced around the band a transverse drive bar linking the two bands two triangular guides (36) fitted inside one band and spaced so as to delimit a track (42) to take successive wheels and tandems and a bolt (74) to hold a guide and drive bar 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 July 18, 1997 and granted February 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 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.