Granted Patent
Utility
US 5,650,048 · App. 08/595,000
Extended nip press with hydraulic pressure equalizer valve
Inventor:
Francis X. Swietlik
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: Jan 31, 1996
Inventor
Francis X. Swietlik
Assignee (at issue)
Beloit Technologies, 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.