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Expired European patentEurope

Glow-discharge decomposition apparatus

EP 0165618 B1 · Applicant: KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA

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Overview

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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.

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Why it's free to use

  • Filed June 21, 1985 and granted September 16, 1992. A European patent lasts at most 20 years from filing, so its term ended June 21, 2005.
  • 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 December 21, 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.
FiledJune 21, 1985
PublishedDecember 27, 1985
GrantedSeptember 16, 1992
Term endedJune 21, 2005
Application numberEP 85107698
Classification (CPC)H01J37/32082 +2 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedJune 21, 1985PublishedDec 27, 1985Patent grantedSep 16, 1992Term endedJune 21, 2005

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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