Granted Patent
Utility
US 5,865,441 · App. 08/802,122
Emission seal
Inventor:
David C. Orlowski
Patented Case
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Granted: Feb 2, 1999
Filed: Feb 19, 1997
Inventor
David C. Orlowski
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.