Patent Yard Sign in
Expired European patentEurope

A method and apparatus for measuring oil effluent flow rates

EP 1009975 B1 · Applicant: SCHLUMBERGER LIMITED

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed August 18, 1998 and granted July 2, 2003. A European patent lasts at most 20 years from filing, so its term ended August 18, 2018.
  • 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 February 18, 2024.
  • 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.
FiledAugust 18, 1998
PublishedJune 21, 2000
GrantedJuly 2, 2003
Term endedAugust 18, 2018
Application numberEP 98948844
Classification (CPC)G01N22/00 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedAug 18, 1998PublishedJune 21, 2000Patent grantedJuly 2, 2003Term endedAug 18, 2018

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.