Granted Patent
Utility
US 5,844,550 · App. 07/950,402
Man-machine interface
Inventors:
John J. Trainor, Carl J. Laplace, Michael A. Bellin, Mark R. Hoffmann
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Sep 23, 1992
Inventors
John J. Trainor
Carl J. Laplace
Michael A. Bellin
Mark R. Hoffmann
Assignee (at issue)
Siemens Power Transmission & Distribution, Inc.
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.