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Dual system of control for dirigible devices

US 1,546,579 A · Inventors: HAMMOND JR JOHN HAYS

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Overview

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

No Claude kit for weapons

Claude doesn't help design weapons, ammunition or explosives, so this page has no Reinvent kit. To develop this one, work with a federally licensed manufacturer (many of these items are regulated) and a registered patent attorney or agent, listed on the USPTO roster.

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.

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Why it's free to use

  • Granted July 21, 1925. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by July 21, 1942.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledOctober 14, 1915
GrantedJuly 21, 1925
Term endedJuly 21, 1942
Application number—
Classification (CPC)F42B19/10 +2 more
Length8 pages

Timeline

Timeline From USPTO dates

191619191922192519281931193419371940Application filedOct 14, 1915Patent grantedJuly 21, 1925Term endedJuly 21, 1942

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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Everything on this page comes from the USPTO record linked above.