Granted Patent
Utility
US 5,608,521 · App. 08/530,683
Polarization compensated imaging spectrometer
Inventor:
Raymond K. De Long
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Sep 18, 1995
Inventor
Raymond K. De Long
Assignee (at issue)
TRW Limited
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.