Granted Patent
Utility
US 4,750,360 · App. 06/792,416
Mechanical seal tester
Inventor:
Martin L. Smith
Patented Case
View Patent ↗
Granted: Jun 14, 1988
Filed: Oct 29, 1985
Inventor
Martin L. Smith
Assignee (at issue)
BW/ID 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.