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Expired Canadian patentCanada

Indexable insert for roughing and finishing

CA 1332869 C · Owner: Valenite Inc. · Inventors: Pawlik, James A.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A cutting tool employing negative cutting inserts providing both high volume stock removal and a fine surface finish. The insert utilizes negative radial and positive axial rake angles and incorporates a lead angle of between about 30° degrees to about 90° degrees.

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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 November 8, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 8, 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.
FiledMarch 16, 1989
GrantedNovember 8, 1994
Term endedNovember 8, 2011
Patent numberCA 1332869 C
Classification (IPC)C04B35/56 +1 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedMarch 16, 1989Patent grantedNov 8, 1994Term endedNov 8, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.