Power driven sweeper
CA 1160406 A · Owner: All-Phase Electronics, Inc. · Inventors: Whitson, Donald W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wheel mounted power driven sweeper for cleaning hard to clean floors such as hardened animal manure from animal houses, concrete slabs in feed lots, etc. has a plurality of circular brushes mounted thereon in combination with circular cutting knives disposed adjacent the brushes the brushes and, knives being mounted on a wheeled frame with a motor and a switch controlling the motor.
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
- Granted January 17, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2001.
- 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.