Granted Patent
Utility
US 4,659,043 · App. 06/609,938
Railroad hot box detector
Inventor:
Cornelius A. Gallagher
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: May 14, 1984
Inventor
Cornelius A. Gallagher
Assignee (at issue)
Servo Corporation of America
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.