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Apparatus for polishing and buffing sink ribs

US 2,933,859 A · Inventors: GUINN ELDON J

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4 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 April 26, 1960. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by April 26, 1977.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 1, 1958
GrantedApril 26, 1960
Term endedApril 26, 1977
Application number—
Classification (CPC)B24B7/10
Length13 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

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