Short track wheel
CA 2115697 A1 · Owner: Batelaan, Joost · Inventors: Batelaan, Joost
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A track wheel having a self supporting track mounted on a pair of load bearing rollers. The track comprises a continuous resilient band having a preformed transverse and longitudinal curvature for resisting flattening to a larger radius under load but substantially free to bend to a smaller radius of curvature for passage around the rollers. The radius of transverse curvature is made approximately equal to the radius of said rollers and the radius of longitudinal, curvature is made not greater than 20 times the radius of the transverse curvature to provide a short track wheel having a high load capacity and large surface contacting area or footprint.
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 15, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2016.
- 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.