Granted Patent
Utility
US 4,456,877 · App. 06/418,902
Hybrid spectrum analyzer system
Inventor:
Hugh B. Brown
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Sep 16, 1982
Inventor
Hugh B. Brown
Assignee (at issue)
Ampex 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.