Expired European patentEurope
Process for operating a filtration plant and filtration plant for carrying out this process
EP 0500109 B1 · Applicant: BHS-Bayerische Berg-, Hütten- und Salzwerke Aktiengesellschaft
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 February 20, 1992 and granted October 16, 1996. A European patent lasts at most 20 years from filing, so its term ended February 20, 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 August 20, 2017.
- 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.
FiledFebruary 20, 1992
PublishedAugust 26, 1992
GrantedOctober 16, 1996
Term endedFebruary 20, 2012
Application numberEP 92102865
Classification (CPC)B01D37/02 +2 more
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.