Expired European patentEurope
Composition for producing plastic or hard materials for the dental industry, (dental) medicine and related use, process for its preparation and its use
EP 0138232 B1 · Applicant: Hofacker Freifrau von Nostitz, Frauke
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 18, 1984 and granted September 5, 1990. A European patent lasts at most 20 years from filing, so its term ended October 18, 2004.
- 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 18, 2010.
- 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 18, 1984
PublishedApril 24, 1985
GrantedSeptember 5, 1990
Term endedOctober 18, 2004
Application numberEP 84112570
Classification (CPC)A61K6/90 +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.