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Expired Australian patentAustraliaSolo inventor

The countersink bit

AU 1986052688

AusPat record

Overview

Drawings and full text

Its specification, documents and status are on IP Australia's AusPat.

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Read the whole patent

Listed from its IP Australia record in Patent Yard's archive of Australian patents past their term. Its claims, description and drawings are in the AusPat record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed January 23, 1986. An Australian petty patent lasted at most 6 years from its date of patent, at most a year after this filing, so it ended by January 23, 1993.
  • We check Australian rights only. A patent in its family in another country could still be in force.
FiledJanuary 23, 1986
GrantedNo grant recorded
Term ended byJanuary 23, 1993
Application numberAU 1986052688
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1987198819891990199119921993Application filedJan 23, 1986Term ended byJan 23, 1993

Sources & verification

Everything on this page comes from the IP Australia record linked above. Data from IP Australia's IPGOD, licensed under CC BY 2.5 AU.