Patent Yard Sign in
Australian application, no grantAustralia

Telecommunication crossbar switches

AU 1971024005 · Applicant: Plessey Handel Und Investments A G

AusPat record

Overview

Drawings and full text

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

Open the AusPat record

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, and the Claude kit works from them.

Why it's free to use

  • Filed January 5, 1971. Even if it was granted, its term would have ended by January 5, 1992.
  • A pharmaceutical extension adds at most five years, so even that would have ended by January 5, 1997.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 5, 1971
GrantedNo grant recorded
Term ended byJanuary 5, 1992
Application numberAU 1971024005
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1972197519781981198419871990Application filedJan 5, 1971Term ended byJan 5, 1992

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.