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European application, no grantEurope

Improved keyboard apparatus and process for making same

EP 0203261 A2 · Applicant: PENNWALT CORPORATION

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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 February 10, 1986 and never granted as a European patent. Had it been granted, its 20-year term would have ended February 10, 2006.
  • 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, 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.
FiledFebruary 10, 1986
PublishedDecember 3, 1986
GrantedNever granted
Term endedFebruary 10, 2006
Application numberEP 86101682
Classification (CPC)H03K17/9643

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedFeb 10, 1986PublishedDec 3, 1986Term endedFeb 10, 2006

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.