Implement for moving compost stored in stacks
CA 2038335 C · Owner: Willibald, Josef · Inventors: Willibald, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An implement for mechanically removing and laterally displacing compost or plant material to be composted which is stored in elongated stacks. The implement is used to cut strips from a stack in longitudinal direction and almost simultaneously depositing the cut material in another parallel stack which is laterally offset by at least the width of the implement. The implement includes a frame and an essentially vertically extending cutter roller which is rotatably driven about its longitudinal axis by a motor. A duct located adjacent the cutter roller extends transversely of the travel direction of the implement. An inclined conveyor forms the bottom of the duct. The implement further …
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 15, 1991 and granted February 4, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2013.
- 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.