Expired European patentEurope
Energy saving and monitoring pneumatic control valve system
EP 0546694 B1 · Applicant: ROSS OPERATING VALVE COMPANY
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 16, 1992 and granted February 28, 1996. A European patent lasts at most 20 years from filing, so its term ended November 16, 2012.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by May 16, 2018.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledNovember 16, 1992
PublishedJune 16, 1993
GrantedFebruary 28, 1996
Term endedNovember 16, 2012
Application numberEP 92310441
Classification (CPC)F15B11/064
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.