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Electronic calculator having the functions of telephone book, address book, calendar, schedule book and memo book

US D409,227 S · Assignee: Casio Keisanki Kabushiki Kaisha · Inventors: Takahata; Kenji et al.

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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Granted May 4, 1999. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended May 4, 2013.
  • A design patent protects only how a product looks. We check US rights only.
FiledJuly 1, 1998
GrantedMay 4, 1999
Term endedMay 4, 2013
Application numberD/090184
Classification (CPC)—
Length5 pages

Timeline

Timeline From USPTO dates

2000200220042006200820102012Design grantedMay 4, 1999Term endedMay 4, 2013

Sources & verification

Official USPTO records

Full published documentText and every drawing sheet as a PDF.USPTOFile historyStatus, office actions, notices, fee records and petitions.USPTO Patent CenterPatent Public Search recordSearchable full text and bibliographic data.USPTO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comJustia PatentsFull text, claims and classification.patents.justia.comFreePatentsOnlineFull text and PDF.freepatentsonline.comEspacenetForeign family and legal status.European Patent Office

Everything on this page comes from the USPTO record linked above.