Granted Patent
Utility
US 5,841,491 · App. 08/687,086
Fiberscope enhancement system
Inventors:
David A. D'Alfonso, Jordan C. Christoff
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Jul 23, 1996
Inventors
David A. D'Alfonso
Jordan C. Christoff
Assignee (at issue)
Envision Medical 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.