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Expired Australian patentAustralia

Satellite switches tdma system

AU 1981077639 · Applicant: Cseltcentro Studi E Laboratori Telecomunicazioni Spa

AusPat record

Overview

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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 November 19, 1981 and granted October 10, 1985. 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 November 19, 2002.
  • A pharmaceutical extension adds at most five years, so even that would have ended by November 19, 2007.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 19, 1981
GrantedOctober 10, 1985
Term ended byNovember 19, 2002
Application numberAU 1981077639
Classification (IPC)H04J3/00 +2 more

Timeline

Timeline From IP Australia dates

1982198519881991199419972000Application filedNov 19, 1981Patent grantedOct 10, 1985Term ended byNov 19, 2002

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.