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Expired Australian patentAustralia

A system for transmitting a data stream

AU 1987074710 · Applicant: Siemens Aktiengesellschaft

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 June 25, 1987 and granted January 29, 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 June 25, 2008.
  • A pharmaceutical extension adds at most five years, so even that would have ended by June 25, 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.
FiledJune 25, 1987
GrantedJanuary 29, 1990
Term ended byJune 25, 2008
Application numberAU 1987074710
Classification (IPC)H04L25/49 +2 more

Timeline

Timeline From IP Australia dates

1988199119941997200020032006Application filedJune 25, 1987Patent grantedJan 29, 1990Term ended byJune 25, 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.