Granted Patent
Utility
US 4,984,343 · App. 07/370,348
Hydrostatically supported roll and a sealing element therefor
Inventor:
Gunter Schrors
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Jun 22, 1989
Inventor
Gunter Schrors
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.