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

US D398,331 S · Assignee: Casio Computer Co., Ltd. · Inventors: Ono; Junichi

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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.

Why it's free to use

  • Granted September 15, 1998. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended September 15, 2012.
  • A design patent protects only how a product looks. We check US rights only.
FiledAugust 11, 1997
GrantedSeptember 15, 1998
Term endedSeptember 15, 2012
Application numberD/074877
Classification (CPC)—
Length4 pages

Timeline

Timeline From USPTO dates

1999200120032005200720092011Design grantedSep 15, 1998Term endedSep 15, 2012

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