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Expired Australian patentAustralia

Air intake meter for an internal combustion engine

AU 1987071921 · Applicant: Mitsubishi Denki Kabushiki Kaisha

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 April 23, 1987 and granted November 30, 1988. 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 April 23, 2008.
  • A pharmaceutical extension adds at most five years, so even that would have ended by April 23, 2013.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 23, 1987
GrantedNovember 30, 1988
Term ended byApril 23, 2008
Application numberAU 1987071921
Classification (IPC)G01F1/32

Timeline

Timeline From IP Australia dates

1988199119941997200020032006Application filedApril 23, 1987Patent grantedNov 30, 1988Term ended byApril 23, 2008

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.