Granted Patent
Utility
US 5,370,403 · App. 07/991,315
Non-contacting face seal
Inventor:
Josef Sedy
Patented Case
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Granted: Dec 6, 1994
Filed: Dec 16, 1992
Inventor
Josef Sedy
Assignee (at issue)
Durametallic 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.