Granted Patent
Utility
US 5,624,432 · App. 08/390,624
Illuminating bougie and methods for diagnostic, therapeutic and surgical procedures
Inventor:
Jean P. Angelchik
Patented Case
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Granted: Apr 29, 1997
Filed: Feb 17, 1995
Inventor
Jean P. Angelchik
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.