Granted Patent
Utility
US 4,502,378 · App. 06/531,085
Hydraulic reservoir for silage compression machines
Inventor:
Steven R. Cullen
Patented Case
View Patent ↗
Granted: Mar 5, 1985
Filed: Sep 12, 1983
Inventor
Steven R. Cullen
Assignee (at issue)
B.A.G. Corp.
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.