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Expired Canadian patentCanada

Cutting tool

CA 2087302 C · Owner: Budd Company (The) · Inventors: Kish, William Steven

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 cutting tool which can be used for milling metals metal alloys and for, woodworking. The cutting tool includes a shaft which is attachable to means of rotation and a head portion provided with multiple cutting edges. The cutting tool is capable of cutting in any direction and allows for cutting at increased speeds.

Read the whole patent

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

  • Filed January 14, 1993 and granted December 13, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 14, 1993
GrantedDecember 13, 1994
Term endedJanuary 14, 2013
Patent numberCA 2087302 C
Classification (IPC)B23C5/02 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJan 14, 1993Patent grantedDec 13, 1994Term endedJan 14, 2013

Sources & verification

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