Granted Patent
Utility
US 4,553,773 · App. 06/520,810
Load equalizer valve and suspension system
Inventor:
William C. Pierce
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Aug 5, 1983
Inventor
William C. Pierce
Assignee (at issue)
Lear Siegler, 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.