Granted Patent
Utility
US 5,771,774 · App. 08/728,096
Spring brake actuator having plastic pressure plate assembly
Inventor:
Steven M. Stojic
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Oct 9, 1996
Inventor
Steven M. Stojic
Assignee (at issue)
Nai Anchorlok, 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.