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Expired Australian patentAustralia

Method and apparatus for controlling differentially driven wheel slip

AU 1981069284 · Applicant: Caterpillar Inc

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 May 7, 1980 and granted December 19, 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 May 7, 2001.
  • A pharmaceutical extension adds at most five years, so even that would have ended by May 7, 2006.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 7, 1980
GrantedDecember 19, 1985
Term ended byMay 7, 2001
Application numberAU 1981069284
Classification (IPC)B60K17/16 +2 more

Timeline

Timeline From IP Australia dates

1981198419871990199319961999Application filedMay 7, 1980Patent grantedDec 19, 1985Term ended byMay 7, 2001

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.