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Liquid-controlled gravity valve for use with furnace oxidators and mechanism for operating the same

US 1,562,906 A · Inventors: MILLER JOHN J A

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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 November 24, 1925. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 24, 1942.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 15, 1923
GrantedNovember 24, 1925
Term endedNovember 24, 1942
Application number—
Classification (CPC)F23N3/00
Length6 pages

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1924192619281930193219341936193819401942Application filedJan 15, 1923Patent grantedNov 24, 1925Term endedNov 24, 1942

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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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