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Expired European patentEurope

Valve system for controlling the direction of fluid discharge from a nozzle in a thruster system

EP 0037865 B1 · Applicant: Weir Pumps Limited

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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 April 9, 1980 and granted August 22, 1984. A European patent lasts at most 20 years from filing, so its term ended April 9, 2000.
  • 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 October 9, 2005.
  • 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.
FiledApril 9, 1980
PublishedOctober 21, 1981
GrantedAugust 22, 1984
Term endedApril 9, 2000
Application numberEP 80301123
Classification (CPC)B63H25/46 +1 more

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedApril 9, 1980PublishedOct 21, 1981Patent grantedAug 22, 1984Term endedApril 9, 2000

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.