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Expired European patentEurope

Apparatus for measuring the extinction coefficient of laser range-finders

EP 0048014 B1 · Applicant: SIEMENS AKTIENGESELLSCHAFT

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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 14, 1981 and granted April 3, 1985. A European patent lasts at most 20 years from filing, so its term ended September 14, 2001.
  • 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 14, 2007.
  • 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 14, 1981
PublishedMarch 24, 1982
GrantedApril 3, 1985
Term endedSeptember 14, 2001
Application numberEP 81107240
Classification (CPC)G01S7/497

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedSep 14, 1981PublishedMarch 24, 1982Patent grantedApril 3, 1985Term endedSep 14, 2001

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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