Expired European patentEurope
Process for the production of multilayer coated hard metal parts
EP 0306077 B1 · Applicant: PLANSEE TIZIT GESELLSCHAFT M.B.H.
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 August 19, 1988 and granted March 30, 1994. A European patent lasts at most 20 years from filing, so its term ended August 19, 2008.
- 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 February 19, 2014.
- 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.
FiledAugust 19, 1988
PublishedMarch 8, 1989
GrantedMarch 30, 1994
Term endedAugust 19, 2008
Application numberEP 88201778
Classification (CPC)C23C14/06 +1 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.