Granted Patent
Utility
US 5,869,835 · App. 08/863,375
Asymmetric fiber optic grating sensor
Inventor:
Eric Udd
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: May 27, 1997
Inventor
Eric Udd
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.