Patent Yard Sign in
Expired Australian patentAustralia

Polyamide fiber

AU 1984037143 · Applicant: Ei Du Pont De Nemours And Company

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 December 27, 1984 and granted September 15, 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 December 27, 2005.
  • A pharmaceutical extension adds at most five years, so even that would have ended by December 27, 2010.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 27, 1984
GrantedSeptember 15, 1989
Term ended byDecember 27, 2005
Application numberAU 1984037143
Classification (IPC)D01F6/90 +2 more

Timeline

Timeline From IP Australia dates

1985198819911994199720002003Application filedDec 27, 1984Patent grantedSep 15, 1989Term ended byDec 27, 2005

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.