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Expired Canadian patentCanada

Cutting member for material removal tool

CA 2128071 C · Owner: Jost, Peter · Inventors: Ritt, Walter; Jost, Peter; Magyari, Eugen

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 member to be connected to a material removing device such as an annular bit a drilling bit, a, cutting bit, a saw and the like consists of a binder, agent, diamond grains and a small amount of hard material particles. The hard material particles reinforce the binder agent and supports the anchorage of the diamond grains.

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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

  • Filed July 14, 1994 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 14, 1994
GrantedMay 23, 2000
Term endedJuly 14, 2014
Patent numberCA 2128071 C
Classification (IPC)B23P5/00 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJuly 14, 1994Patent grantedMay 23, 2000Term endedJuly 14, 2014

Sources & verification

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