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Expired Canadian patentCanada

Milling cutter and cartridge therefor

CA 1323981 C · Owner: Wallstrom, Lars-Gunnar · Inventors: Nilsson, Per; Wallstrom, Lars-Gunnar; Tukala, Tommy S.

CIPO record

Overview

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

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Abstract From the Canadian patent

The invention provides a milling cutter for machining metal workpieces and a cartridge therefor. The milling cutter comprises a plurality of peripheral recesses (11) for the receipt of insert-equipped cartridges (23). One of the walls of said recess is provided by two arms (15) integral with the milling cutter body that each by means of a screw (29) is arranged to clamp the cartridge against one wall in said recess. The cartridge is provided with two bores having suitable clearance for the receipt of said screws (29).

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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 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 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.
FiledJune 15, 1989
GrantedNovember 9, 1993
Term endedNovember 9, 2010
Patent numberCA 1323981 C
Classification (IPC)B23C5/22 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 15, 1989Patent grantedNov 9, 1993Term endedNov 9, 2010

Sources & verification

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