Indexable cutting insert
CA 1304926 C · Owner: Takahashi, Nobuhiro · Inventors: Takahashi, Nobuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, An indexable cutting insert used for cutting machine parts and having a polygonal shape includes a plurality of nose portions formed at vertices of the polygonal shape. A cutting edge is formed between neighboring nose portions and a land portion is formed inside the cutting edge. A dimple is provided in the vicinity of each nose portion and the land portion, inside each nose portion. The cutting edge is inclined upwardly away from each nose portion. The arrangement enables the insert to be used efficiently over a wide range of cutting processes from rough cutting to finish cutting.
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
- Granted July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
- 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.