Expired Australian patentAustralia
Hearing protection device
AU 2003239883 · Applicant: 3M Innovative Properties Company
Overview
Drawings and full text
Its specification, documents and status are on IP Australia's AusPat.
Open the AusPat recordRead 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 January 27, 2003 and granted October 16, 2008. 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 January 27, 2024.
- Term extensions apply only to pharmaceutical patents, and it isn't classified as one.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 27, 2003
GrantedOctober 16, 2008
Term ended byJanuary 27, 2024
Application numberAU 2003239883
Classification (IPC)A61F11/08
Timeline
Timeline From IP Australia dates
Sources & verification
Official IP Australia records
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.