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Extension coupler

US D400,178 S · Assignee: Dan-Chief Enterprise Co., Ltd. · Inventors: Liu; Danny

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Overview

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

Read the whole patent

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.

Google PatentsUSPTO PDF

Why it's free to use

  • Granted October 27, 1998. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended October 27, 2012.
  • A design patent protects only how a product looks. We check US rights only.
FiledApril 24, 1997
GrantedOctober 27, 1998
Term endedOctober 27, 2012
Application numberD/069523
Classification (CPC)—
Length5 pages

Timeline

Timeline From USPTO dates

1999200120032005200720092011Design grantedOct 27, 1998Term endedOct 27, 2012

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.