Australian application, no grantAustralia
Passivation layer for semiconductor device
AU 1975079189 · Applicant: Sony Corporation
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 March 18, 1975. Even if it was granted, its term would have ended by March 18, 1996.
- A pharmaceutical extension adds at most five years, so even that would have ended by March 18, 2001.
- 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 18, 1975
GrantedNo grant recorded
Term ended byMarch 18, 1996
Application numberAU 1975079189
Classification (IPC)H01L21/314 +2 more
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.