Granted Patent
Utility
US 5,141,827 · App. 07/569,627
Ion conductor or electrolyte for a galvanic element
Inventors:
Heinz P. Fritz, Klaus Stein
Patented Case
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Granted: Aug 25, 1992
Filed: Aug 20, 1990
Inventors
Heinz P. Fritz
Klaus Stein
Assignee (at issue)
Varta Batterie Aktiengesellschaft
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.