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Expired European patentEurope

Inverter control circuit of motor-driven blower for electric vacuum cleaner, drive control circuit using the same, and electric vacuum cleaner using drive control circuit

EP 1189334 B1 · Applicant: Toshiba Tec Kabushiki Kaisha

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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 August 28, 2001 and granted June 23, 2004. A European patent lasts at most 20 years from filing, so its term ended August 28, 2021.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 28, 2001
PublishedMarch 20, 2002
GrantedJune 23, 2004
Term endedAugust 28, 2021
Application numberEP 01307266
Classification (CPC)H02P6/34 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedAug 28, 2001PublishedMarch 20, 2002Patent grantedJune 23, 2004Term endedAug 28, 2021

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

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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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