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Process for the production of beryllium alloys, in particular those with a high beryllium content by means of fused liquid electrolysis

US 1,813,919 A · Inventors: HELLMUT FISCHER

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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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  • Granted July 14, 1931. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by July 14, 1948.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 22, 1929
GrantedJuly 14, 1931
Term endedJuly 14, 1948
Application number—
Classification (CPC)C25C3/36
Length2 pages

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1930193219341936193819401942194419461948Application filedMay 22, 1929Patent grantedJuly 14, 1931Term endedJuly 14, 1948

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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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