Mower deck
CA 2201385 C · Owner: Hohnl, Gary David · Inventors: Benter, Dean William; Hohnl, Gary David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite insert is provided for converting a rotary mower deck from side discharge to mulching usage. The insert can be detatchably mounted in the mower deck and provides a cutting chamber wherein grass can be cut mulched and redistributed onto, the ground beneath the mower deck. The insert forms with the mower housing a cutting chamber which includes a reduced cross-sectional area at the front portion that provides for confining and accelerating the movement of air and clippings there through to minimize build-up of clippings adjacent the chamber surfaces. At the rear portions of the chamber a larger cross-sectional area is provided to permit the clippings to slow down and disperse …
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 March 27, 1997 and granted October 3, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2019.
- 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.