Patent Yard Sign in
Expired Australian patentAustraliaSolo inventor

Heat exchange assembly

AU 1999034005

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 April 28, 1999 and granted March 20, 2003. 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 28, 2020.
  • A pharmaceutical extension adds at most five years, so even that would have ended by April 28, 2025.
  • 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 28, 1999
GrantedMarch 20, 2003
Term ended byApril 28, 2020
Application numberAU 1999034005
Classification (IPC)E04D13/18 +2 more

Timeline

Timeline From IP Australia dates

2000200320062009201220152018Application filedApril 28, 1999Patent grantedMarch 20, 2003Term ended byApril 28, 2020

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.