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Lower heat insulating cylinder for manufacturing semiconductor wafers

US D574,792 S · Assignee: Tokyo Electron Limited · Inventors: Sato; Izumi

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Overview

10 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 12, 2008. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended August 12, 2022.
  • A design patent protects only how a product looks. We check US rights only.
FiledFebruary 20, 2007
GrantedAugust 12, 2008
Term endedAugust 12, 2022
Application numberD/272820
Classification (CPC)—
Length11 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

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