Granted Patent
Utility
US 4,326,754 · App. 06/191,829
Valve and actuator assembly for railroad car air brake system
Inventor:
Bruce L. Harding
Patented Case
View Patent ↗
Granted: Apr 27, 1982
Filed: Sep 29, 1980
Inventor
Bruce L. Harding
Assignee (at issue)
Smith Valve Corporation
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.