Expired European patentEurope
Injection arrangement of dosed quantities of pulverulent materials in a pneumatic propulsion fluid and application to the injection of solid fuels into a shaft furnace
EP 0108319 B1 · Applicant: PAUL WURTH S.A.
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 October 24, 1983 and granted February 17, 1988. A European patent lasts at most 20 years from filing, so its term ended October 24, 2003.
- 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 April 24, 2009.
- 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.
FiledOctober 24, 1983
PublishedMay 16, 1984
GrantedFebruary 17, 1988
Term endedOctober 24, 2003
Application numberEP 83110587
Classification (CPC)C21B5/003 +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.