Granted Patent
Utility
US 4,975,152 · App. 07/376,330
Enclosed extended nip press apparatus with inflatable seals and barbs
Inventors:
Scott E. Filzen, David V. Lange, Timothy L. Hauser
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Jul 6, 1989
Inventors
Scott E. Filzen
David V. Lange
Timothy L. Hauser
Assignee (at issue)
Beloit Corporation
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.