Wire weed-cutter and staggered toothed harrow
CA 1080537 A · Owner: Brown, Arthur H. · Inventors: Brown, Arthur H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A C T :, A gardening tool mounted on 2 wheels used for both cutting weeds at the roots and cultivating the soil. In this invention a thin steel wire is streched tightly from the ends of Z steel pins which are mounted by set-screws in the ends of a 13" square tubing which is welded across the end of the handle to form a "T" shape. With this tool weeds are cut approximately 3 CM below the surface of the ground while pushing the implement forward. A staggered tooth harrow is then engaged which cultivates the soil while pulling in reverse.
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 July 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 1, 1997.
- 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.