Gang mower
CA 2209910 C · Owner: Short, Douglas · Inventors: Short, Douglas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gang mower (10) for garden tractors includes a frame (11) a hitch (13) and either three, five or seven reel-type mower units (12) attached to the frame (11). The frame (11) is attached below the forward wheel axis (88) of each mower unit (12). In action the frame (11) leverages the forward drive wheels (80 81) downward to turn the mower blades (85) when the frame (11) is pulled forward by a garden tractor.
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 January 11, 1996 and granted September 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2018.
- 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.