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Expired Australian patentAustralia

Wideband assisted reverberation system

AU 1993040944 · Applicant: Industrial Research Limited

AusPat record

Overview

Drawings and full text

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

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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 May 20, 1993 and granted February 12, 1997. 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 May 20, 2014.
  • A pharmaceutical extension adds at most five years, so even that would have ended by May 20, 2019.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 20, 1993
GrantedFebruary 12, 1997
Term ended byMay 20, 2014
Application numberAU 1993040944
Classification (IPC)G10K15/12 +2 more

Timeline

Timeline From IP Australia dates

1994199720002003200620092012Application filedMay 20, 1993Patent grantedFeb 12, 1997Term ended byMay 20, 2014

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.