Granted Patent
Utility
US 5,213,343 · App. 07/847,850
Shaft seal with support member and backing ring
Inventor:
Hollis N. White, Jr.
Patented Case
View Patent ↗
Granted: May 25, 1993
Filed: Mar 9, 1992
Inventor
Hollis N. White, Jr.
Assignee (at issue)
White Hydraulics, 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.