Expired Australian patentAustralia
Axial flow fan
AU 1983016366 · Applicant: Donetsky Gosudarstvenny Proektnokonstruktorsky I Experimentalny Institut Komplexnoi Mekhanizatsii Shakht
Overview
Drawings and full text
Its specification, documents and status are on IP Australia's AusPat.
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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 June 29, 1983 and granted December 9, 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 June 29, 2004.
- A pharmaceutical extension adds at most five years, so even that would have ended by June 29, 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.
FiledJune 29, 1983
GrantedDecember 9, 1987
Term ended byJune 29, 2004
Application numberAU 1983016366
Classification (IPC)F01D11/08 +1 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.