Granted Patent
Utility
US 4,789,241 · App. 07/017,691
Optical fiber sensing systems having acoustical optical deflection and; modulation devices
Inventors:
Ronald J. Michal, Eric Udd, Richard F. Cahill
Patented Case
View Patent ↗
Granted: Dec 6, 1988
Filed: Feb 24, 1987
Inventors
Ronald J. Michal
Eric Udd
Richard F. Cahill
Assignee (at issue)
McDonnell Douglas 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.