Granted Patent
Utility
US 5,799,951 · App. 08/754,946
Rotating sealing device
Inventors:
Weston A. Anderson, John E. Richardson
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Nov 21, 1996
Inventors
Weston A. Anderson
John E. Richardson
Assignee (at issue)
Varian, 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.