Bearing protector for a rotary hoe
CA 2096053 A1 · Owner: Heintzman, Rick · Inventors: Heintzman, Rick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement for no-till rotary hoes to prevent trash from accumulating around a bearing of the rotary hoes thus destroying the bearing. An elongated axle mounts a hoe wheel distant from its corresponding support arm and in close proximity to an adjacent support arm, and the axle is protected by a springloaded protective sleeve which is spring loaded to provide a frictional seal against the bearing of the hoe wheel.
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 12, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 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.