Granted Patent
Utility
US 5,221,095 · App. 07/772,233
Static and dynamic shaft seal assembly
Inventor:
David C. Orlowski
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Oct 7, 1991
Inventor
David C. Orlowski
Assignee (at issue)
InPro Corporation
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.