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Light bulb

US D643,136 S · Assignee: Huizhou Light Engine Ltd. · Inventors: Li; Eddie Ping Kuen et al.

USPTO PDF

Overview

6 drawing sheets

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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 August 9, 2011. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended August 9, 2025.
  • A design patent protects only how a product looks. We check US rights only.
FiledOctober 22, 2010
GrantedAugust 9, 2011
Term endedAugust 9, 2025
Application numberD/377581
Classification (CPC)—
Length8 pages

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.