Expired Australian patentAustralia
Window frames
AU 1979046188 · Applicant: Yoshida Kogyo Kk
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 April 18, 1979 and granted March 26, 1981. 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 18, 2000.
- A pharmaceutical extension adds at most five years, so even that would have ended by April 18, 2005.
- 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 18, 1979
GrantedMarch 26, 1981
Term ended byApril 18, 2000
Application numberAU 1979046188
Classification (IPC)E06B1/62 +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.