Patent Yard Sign in
Expired Australian patentAustralia

Gas sensors

AU 1979048007 · Applicant: The Broken Hill Proprietary Company Limited

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 June 12, 1979 and granted May 20, 1982. 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 12, 2000.
  • A pharmaceutical extension adds at most five years, so even that would have ended by June 12, 2005.
  • 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 12, 1979
GrantedMay 20, 1982
Term ended byJune 12, 2000
Application numberAU 1979048007
Classification (IPC)G01N27/12 +2 more

Timeline

Timeline From IP Australia dates

1980198319861989199219951998Application filedJune 12, 1979Patent grantedMay 20, 1982Term ended byJune 12, 2000

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.