Granted Patent
Utility
US 5,392,691 · App. 08/087,659
Stone shield for air brake actuator with welded yoke
Inventor:
Thomas O. Schultz
Patented Case
View Patent ↗
Granted: Feb 28, 1995
Filed: Jul 6, 1993
Inventor
Thomas O. Schultz
Assignee (at issue)
INDIAN HEAD INDUSTRIES, 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.