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Expired Canadian patentCanada

Combined hole making and threading tool

CA 1325085 C · Owner: Turchan, Manuel C. · Inventors: Turchan, Manuel C.

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 combination tool is disclosed for drilling a hole in a workpiece on the inward feed of the tool and for threading the hole during retraction of the tool. The tool comprises a straight body with a drill point at the forward end, a shank at the rearward end and a thread-form mill between the drill point and the shank.

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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 December 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 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.
FiledMarch 10, 1987
GrantedDecember 14, 1993
Term endedDecember 14, 2010
Patent numberCA 1325085 C
Classification (IPC)B23G5/20 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMarch 10, 1987Patent grantedDec 14, 1993Term endedDec 14, 2010

Sources & verification

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