Grass cutting unit
CA 2057065 A1 · Owner: Ransomes Sims & Jefferies Limited · Inventors: Aldred, Edward J.; Mills, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A grass cutting unit with a reel rotatably mounted between side plates has bearing assemblies which extend inwardly of the side plates and a reel shaft shorter than the separation of the side plates. After removing one bearing assembly, the reel can be withdrawn transversely for maintenance. There is no necessity for open-ended slots in the side plates. A drive assembly is demountable as a unit with one bearing assembly. The opposite bearing assembly incorporates a spring loaded plunger to pre-load taper roller bearings in both assemblies.
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 13, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2012.
- 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.