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Expired European patentEurope

Method of tightening a bolt

EP 0753377 B1 · Applicant: Quantai Systems Inc.

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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 June 20, 1996 and granted August 16, 2000. A European patent lasts at most 20 years from filing, so its term ended June 20, 2016.
  • 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 December 20, 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.
FiledJune 20, 1996
PublishedJanuary 15, 1997
GrantedAugust 16, 2000
Term endedJune 20, 2016
Application numberEP 96304594
Classification (CPC)B25B23/14 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedJune 20, 1996PublishedJan 15, 1997Patent grantedAug 16, 2000Term endedJune 20, 2016

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.