Granted Patent
Utility
US 5,764,087 · App. 08/474,085
Direct digital to analog microwave frequency signal simulator
Inventor:
Charles J. Clark
Patented Case
View Patent ↗
Granted: Jun 9, 1998
Filed: Jun 7, 1995
Inventor
Charles J. Clark
Assignee (at issue)
AAI 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.