Granted Patent
Utility
US 5,996,399 · App. 08/730,341
Method of using a test liquid for checking the efficiency of electrical power station components
Inventors:
Frantisek Klecka, Christian Leder, Rainer Wulff, Luder Warnken
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Oct 15, 1996
Inventors
Frantisek Klecka
Christian Leder
Rainer Wulff
Luder Warnken
Assignee (at issue)
Siemens 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.