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Expired Canadian patentCanada

Milling machine

CA 1209388 A · Owner: Phillips (J.D.) Corporation · Inventors: Sheets, Robert L.; Phillips, James D.

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 milling machine for milling a radial projection on an elongated workpiece such as a camshaft. A milling head is provided with a plurality of cutting elements mounted in a circular arrangement on a conical face portion thereof. The head is supported with its axis of rotation so oriented with respect to the workpiece that when rotated the cutting elements move in a path the plane of which forms an angle of less than 90° with the longitudinal axis of the workpiece.

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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 August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 18, 1983
GrantedAugust 12, 1986
Term endedAugust 12, 2003
Patent numberCA 1209388 A
Classification (IPC)B23C1/00 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedNov 18, 1983Patent grantedAug 12, 1986Term endedAug 12, 2003

Sources & verification

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