Granted Patent
Utility
US 4,501,429 · App. 06/480,387
Mechanical seal flush agitator and wear monitor for mechanical seals
Inventor:
Richard E. White
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Mar 30, 1983
Inventor
Richard E. White
Assignee (at issue)
Garlock, 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.