Leaf mulcher for use with a rotary blade power lawnmower
CA 2016816 C · Owner: Badawey, George Wayne · Inventors: Deruiter, Theodore Matthew; Badawey, George Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A leaf mulcher is an attachment to a rotary blade power lawnmower. The mulcher has a screen surrounded by a frame with a flange extending from the frame to provide attachment means to the lawnmower. The mulcher is mounted so that the screen transverses a grass outlet on the lawnmower while leaving a space between the outlet and the screen to allow some of the cuttings to escape from the outlet without passing through the screen.
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 15, 1990 and granted December 1, 1992. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 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.