Patent Yard Sign in
Expired Australian patentAustralia

Tension leg platform anchor

AU 1986055218 · Applicant: Shell Internationale Research Maatschappij Bv

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 March 25, 1986 and granted February 16, 1989. 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 March 25, 2007.
  • A pharmaceutical extension adds at most five years, so even that would have ended by March 25, 2012.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 25, 1986
GrantedFebruary 16, 1989
Term ended byMarch 25, 2007
Application numberAU 1986055218
Classification (IPC)B63B21/50

Timeline

Timeline From IP Australia dates

1987199019931996199920022005Application filedMarch 25, 1986Patent grantedFeb 16, 1989Term ended byMarch 25, 2007

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.