Granted Patent
Utility
US 4,655,994 · App. 06/567,447
Method for determining the operability of a source range detector
Inventor:
Lesley Greenberg
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Dec 30, 1983
Inventor
Lesley Greenberg
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.