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Expired European patentEurope

Apparatus for detecting a rotation angle of a diffraction grating

EP 0758075 B1 · Applicant: ANRITSU CORPORATION

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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 December 13, 1995 and granted May 14, 2003. A European patent lasts at most 20 years from filing, so its term ended December 13, 2015.
  • 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 June 13, 2021.
  • 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.
FiledDecember 13, 1995
PublishedFebruary 12, 1997
GrantedMay 14, 2003
Term endedDecember 13, 2015
Application numberEP 95940420
Classification (CPC)G01D5/28 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedDec 13, 1995PublishedFeb 12, 1997Patent grantedMay 14, 2003Term endedDec 13, 2015

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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