Granted Patent
Utility
US 5,633,675 · App. 08/370,866
Shadow probe
Inventors:
Dominick Danna, Raymond A. Lia
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Jan 10, 1995
Inventors
Dominick Danna
Raymond A. Lia
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.