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Expired Canadian patentCanada

Keyless holder for pin-type replaceable cutting inserts

CA 1114141 A · Owner: Lindsay, Harold W. · Inventors: Lindsay, Harold W.

CIPO record

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

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Abstract From the Canadian patent

Keyless Holder for Pin-Type Replaceable Cutting Inserts" ABSTRACT, A holder or nest for pin-type replaceable cutting inserts has a back face and a front face parallel to the back face for supporting a pin-type replaceable cutting insert of the type having a circular aperture centrally disposed therein. A pin extends perpendicularly to the front face of the holder, on which pin the cutting insert is received. The bolder comprises an extension having a face coplanar with the back face of the holder itself. The extension further comprises a threaded aperture to receive a screw which serves to clamp the holder and the cutting insert into a recess in the cutter body.

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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 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 14, 1980
GrantedDecember 15, 1981
Term endedDecember 15, 1998
Patent numberCA 1114141 A
Classification (IPC)B26D1/12 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Application filedApril 14, 1980Patent grantedDec 15, 1981Term endedDec 15, 1998

Sources & verification

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