Granted Patent
Utility
US 4,636,718 · App. 06/632,728
Acousto-optical spectrum analyzer with expanded frequency resolution
Inventors:
Joseph H. Labrum, Allen Wilcox
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Jul 20, 1984
Inventors
Joseph H. Labrum
Allen Wilcox
Assignee (at issue)
Sperry Corp.
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.