Grinding machine and grinding method
CA 1313308 C · Owner: Yamaguchi, Masao · Inventors: Yamaguchi, Masao; Nagase, Noboru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a grinding machine and a grinding method. The grinding machine comprises a pair of opposed upright columns,a cross rail extended between the upper ends of the upright columns,a first moving mechanism mounted on the cross rail for reciprocal movement in a horizontal direction a second moving mechanism mounted on the first moving mechanism for reciprocal movement in the direction perpendicular to the movement of the first moving mechanism,a third moving mechanism mounted on the second moving mechansim for vertical movement and an abrasive-stone head mounted on the third moving mechanism and having an abrasive stone The grinding steps comprises the steps of …
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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
- Granted February 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 2, 2010.
- 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.