Granted Patent
Utility
US 5,091,063 · App. 07/533,322
Organoaluminum electrolytes and process for the electrolytic deposition of aluminum
Inventors:
Herbert Lehmkuhl, Klaus-Dieter Mehler
Patented Case
View Patent ↗
Granted: Feb 25, 1992
Filed: Jun 5, 1990
Inventors
Herbert Lehmkuhl
Klaus-Dieter Mehler
Assignee (at issue)
Studiengesellschaft Kohle gGmbH
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.