Granted Patent
Utility
US 4,853,774 · App. 07/264,257
Auxiliary light apparatus for borescope
Inventors:
Dominick Danna, Jon R. Salvati, Joseph A. Ciarlei
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Oct 28, 1988
Inventors
Dominick Danna
Jon R. Salvati
Joseph A. Ciarlei
Assignee (at issue)
Welch Allyn, Inc.
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.