Grass cutting machines
CA 2118739 A1 · Owner: Dunn, Ken · Inventors: Dunn, Ken
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a grass cutting machine which comprises a chassis, a cutting member, a power source a, drive line for drivingly connecting the power source and the cutting member, means for creating a stream of pressure air, a grass collection device, means for removably supporting the collection device on the machine the, collection device comprising a receptacle for receiving cut grass, the receptacle having at least one inlet for entry of cut grass entrained in a stream of air from said source and including a base wall, an upper wall and one or more side walls, a part of at least one of the base and side walls including an air permeable region to retain cut grass in the …
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 10, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 10, 2016.
- 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.