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Expired Australian patentAustralia

Bullet-proof board

AU 1988019244 · Applicant: Ngk Insulators Ltd

AusPat record

Overview

Drawings and full text

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

Open the AusPat record

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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.

Why it's free to use

  • Filed July 21, 1988 and granted June 26, 1990. An Australian standard patent lasts 20 years from its date of patent, which is at most a year after this filing, so its term ended by July 21, 2009.
  • A pharmaceutical extension adds at most five years, so even that would have ended by July 21, 2014.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 21, 1988
GrantedJune 26, 1990
Term ended byJuly 21, 2009
Application numberAU 1988019244
Classification (IPC)F41H5/04 +2 more

Timeline

Timeline From IP Australia dates

1989199219951998200120042007Application filedJuly 21, 1988Patent grantedJune 26, 1990Term ended byJuly 21, 2009

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.