Granted Patent
Utility
US 5,487,550 · App. 08/067,487
Secondary gas/liquid mechanical seal assembly
Inventors:
Richard F. Salant, Itzhak Green, Larry A. Hufford, Oley Giles
Patented Case
View Patent ↗
Granted: Jan 30, 1996
Filed: May 26, 1993
Inventors
Richard F. Salant
Itzhak Green
Larry A. Hufford
Oley Giles
Assignee (at issue)
BW/IP International, 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.