Granted Patent
Utility
US 6,703,899 · App. 10/114,699
Quad switched gain circuit
Inventor:
Harry S. Harberts
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Apr 2, 2002
Inventor
Harry S. Harberts
Assignee (at issue)
NORTHROP GRUMMAN 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.