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Arrangement for reducing the starting voltage of discharge tubes with a gaseous filling

US 1,609,024 A · Inventors: LELY JR DIRK et al.

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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 30, 1926. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 30, 1943.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 29, 1923
GrantedNovember 30, 1926
Term endedNovember 30, 1943
Application number—
Classification (CPC)H05B41/22 +1 more
Length4 pages

Timeline

Timeline From USPTO dates

1924192619281930193219341936193819401942Application filedJan 29, 1923Patent grantedNov 30, 1926Term endedNov 30, 1943

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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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