European application, no grantEurope
Control process for surface treatment by a laser beam
EP 0086540 A1 · Applicant: CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Assoc. sans but lucratif Ver, zonder winstoogmerk
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 10, 1983 and never granted as a European patent. Had it been granted, its 20-year term would have ended February 10, 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 August 10, 2008.
- 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 10, 1983
PublishedAugust 24, 1983
GrantedNever granted
Term endedFebruary 10, 2003
Application numberEP 83200215
Classification (CPC)C21D1/09 +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.