Cutting device for plate materials
CA 2299061 A1 · Owner: Kawano, Takeo · Inventors: Kawano, Takeo; Hakamada, Yasuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cutting device for plate materials relatively transfers a plate material and cutter blades and cuts the plate material with a cutting portion of the cutter blades. The cutting portion is provided with a plurality of projecting cutter blades. The plurality of projecting cutter blades are separately disposed at fixed, intervals in the direction which the plate material is transferred to the cutter, blades and gradually projected larger toward the direction in which the plate material advances. The plurality of projecting cutter blades have inclined cutting, edges which are acute cutting edges for cutting the plate material in such a manner as to be gradually inserted deeper into 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 February 22, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 22, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2022.
- 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.