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Expired design patentArchive

Stud for use in securing a button

US D344,252 S · Assignee: Ching Fung Metal Manufacturing Factory Ltd. · Inventors: Choi; Leung Y.

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Overview

The published document from the USPTO: abstract, claims, description. Open it full size

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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 February 15, 1994. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended February 15, 2008.
  • A design patent protects only how a product looks. We check US rights only.
FiledDecember 4, 1991
GrantedFebruary 15, 1994
Term endedFebruary 15, 2008
Application number07/802442
Classification (CPC)—
Length3 pages

Timeline

Timeline From USPTO dates

1995199719992001200320052007Design grantedFeb 15, 1994Term endedFeb 15, 2008

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.