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Magneto-optical printing head and method for producing images by grey gradation using such a printing head

EP 0176153 A2 · Applicant: Philips Electronics N.V.

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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 September 20, 1985 and never granted as a European patent. Had it been granted, its 20-year term would have ended September 20, 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 March 20, 2011.
  • 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.
FiledSeptember 20, 1985
PublishedApril 2, 1986
GrantedNever granted
Term endedSeptember 20, 2005
Application numberEP 85201507
Classification (CPC)H04N1/036 +2 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedSep 20, 1985PublishedApril 2, 1986Term endedSep 20, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.