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Expired European patentEurope

Upright vacuum cleaner with cyclonic airflow

EP 1661501 B1 · Applicant: ROYAL APPLIANCE MANUFACTURING CO.

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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 March 17, 1998 and granted August 20, 2008. A European patent lasts at most 20 years from filing, so its term ended March 17, 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 September 17, 2023.
  • 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.
FiledMarch 17, 1998
PublishedMay 31, 2006
GrantedAugust 20, 2008
Term endedMarch 17, 2018
Application numberEP 06000399
Classification (CPC)B01D46/10 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedMarch 17, 1998PublishedMay 31, 2006Patent grantedAug 20, 2008Term endedMarch 17, 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

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