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Voltage sensor

EP 0398396 A2 · Applicant: ENERGY SUPPORT CORPORATION

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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.

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Why it's free to use

  • Filed October 31, 1986 and never granted as a European patent. Had it been granted, its 20-year term would have ended October 31, 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 May 1, 2012.
  • 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.
FiledOctober 31, 1986
PublishedNovember 22, 1990
GrantedNever granted
Term endedOctober 31, 2006
Application numberEP 90113317
Classification (CPC)G01R19/155

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedOct 31, 1986PublishedNov 22, 1990Term endedOct 31, 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.