Hydraulic scrap shear
CA 2000897 C · Owner: Ramun, John R. · Inventors: Ramun, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hydraulic scrap shear for compaction and multiple segmentation in sequence shearing of scrap fed into the shear in a scrap feed direction into uniform scrap blocks, having a shearing block and a shear member registrable with said shear block when moved in a linear direction in a vertical plane, shear block shear blades on said shear block in right angular and co-planar relation to one another, including a central blade extending transverse to the scrap feed direction, side blades connected to opposite ends of the central blade extending in the scrap feed direction and outer side blades on the ends of the side blades that are remote from said central blade and which extend transverse to …
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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 October 17, 1989 and granted August 16, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2011.
- 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.