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Supporting structures for the electrodes of electron discharge devices

US 2,436,734 A · Inventors: BOSCH FRANCOIS JOSEPH GERARD V 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 February 24, 1948. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 24, 1965.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledApril 10, 1942
GrantedFebruary 24, 1948
Term endedFebruary 24, 1965
Application number—
Classification (CPC)H01J43/22
Length3 pages

Timeline

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19431946194919521955195819611964Application filedApril 10, 1942Patent grantedFeb 24, 1948Term endedFeb 24, 1965

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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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