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Electrolytic production of manganese compounds

US 2,424,392 A · Inventors: USCHA GOTTESMANN 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 July 22, 1947. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by July 22, 1964.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledApril 21, 1938
GrantedJuly 22, 1947
Term endedJuly 22, 1964
Application number—
Classification (CPC)C25B1/28 +2 more
Length2 pages

Timeline

Timeline From USPTO dates

193919421945194819511954195719601963Application filedApril 21, 1938Patent grantedJuly 22, 1947Term endedJuly 22, 1964

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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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