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Expired Australian patentAustralia

Hydraulic shifting tool for sliding sleeves

AU 1996055721 · Applicant: Baker Hughes Incorporated

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 April 24, 1996 and granted February 10, 2000. 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 24, 2017.
  • A pharmaceutical extension adds at most five years, so even that would have ended by April 24, 2022.
  • 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 24, 1996
GrantedFebruary 10, 2000
Term ended byApril 24, 2017
Application numberAU 1996055721
Classification (IPC)E21B34/14 +1 more

Timeline

Timeline From IP Australia dates

1997200020032006200920122015Application filedApril 24, 1996Patent grantedFeb 10, 2000Term ended byApril 24, 2017

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.