Granted Patent
Utility
US 4,584,068 · App. 06/668,051
Device and process for the fused-salt electrolysis of alkali metal halides
Inventors:
Walter Hinrichs, Ludwig Lange, Friederich Hammer, Hans-Josef Ludwig
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Nov 5, 1984
Inventors
Walter Hinrichs
Ludwig Lange
Friederich Hammer
Hans-Josef Ludwig
Assignee (at issue)
Degussa AG
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.