Granted Patent
Utility
US 4,675,147 · App. 06/482,641
Generating an integrated graphic display of the safety status of a complex process plant
Inventors:
William Schaefer, James L. Little, Kenneth F. Cooper, James R. Easter
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Apr 6, 1983
Inventors
William Schaefer
James L. Little
Kenneth F. Cooper
James R. Easter
Assignee (at issue)
Westinghouse Electric Company LLC
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.