Granted Patent
Utility
US 5,244,601 · App. 07/624,979
Resistor composition and its use
Inventors:
Hans-Georg Burckhardt, Frieder Gora, Karl-Heinz Guldner, Jurgen Dehoust, Christina Modes, Joachim Schmidt, Rainer Kiemel, Sybille Kemmler-Sack
Patented Case
View Patent ↗
Granted: Sep 14, 1993
Filed: Dec 10, 1990
Inventors
Hans-Georg Burckhardt
Frieder Gora
Karl-Heinz Guldner
Jurgen Dehoust
Christina Modes
Joachim Schmidt
Rainer Kiemel
Sybille Kemmler-Sack
Assignee (at issue)
W. C. Heraeus GmbH
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.