Roughly fragmenting blade and crushing device using the same
CA 2341012 A1 · Owner: Nakagomi, Shoji · Inventors: Nakagomi, Shoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To avoid reduction in efficiency of rough fragmentation operation with a rough fragmenting blade by making it difficult for fragments to stay in clearances, between rough fragmenting blades of roughly fragmenting blade rotary structures so that, rotation of the roughly fragmenting blade rotary structures is kept to the initial drive state. A roughly fragmenting blade (2) has a recessed portion (27) in a side surface of a, roughly fragmenting blade main body having an outer peripheral edge formed with a, blade portion (22). This recessed portion is formed in an annular manner in an intermediate region that is on the inner side in the radial direction with respect to the, blade portion …
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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 March 15, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2023.
- 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.