Expired Australian patentAustralia
Photoelectric conversion device
AU 1983021659 · Applicant: Semiconductor Energy Laboratory Co Ltd
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 November 24, 1983 and granted February 20, 1987. 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 November 24, 2004.
- A pharmaceutical extension adds at most five years, so even that would have ended by November 24, 2009.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 24, 1983
GrantedFebruary 20, 1987
Term ended byNovember 24, 2004
Application numberAU 1983021659
Classification (IPC)H01L31/00 +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.