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Expired Canadian patentCanada

Tool for rotative metal cutting

CA 1232159 A · Owner: Erowa Ag · Inventors: Schneider, Rudolf

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

The invention refers to a tool assembly for cuttingly machining of an at least partially closed inner surface of a workpiece e.g. a bore. It comprises an essentially rod-shaped tool support having a machining tool mounted on its end and which is adapted to be inserted into the cavity to be machined. The tool support comprises a rod member with a continuous opening extending in axial direction and with parallel supporting surfaces arranged in the region of the both ends and extending with an angle to the longitudinal axis of the rod member. A machining tool supporting member having a machining tool mounted at one end is slidably mounted at one end of the rod member and rests against the …

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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, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 2, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 13, 1985
GrantedFebruary 2, 1988
Term endedFebruary 2, 2005
Patent numberCA 1232159 A
Classification (IPC)B23B29/00 +1 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedMay 13, 1985Patent grantedFeb 2, 1988Term endedFeb 2, 2005

Sources & verification

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