Granted Patent
Utility
US 4,752,746 · App. 07/015,908
Wideband microwave matrix amplifier
Inventor:
Karl B. Niclas
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Feb 18, 1987
Inventor
Karl B. Niclas
Assignee (at issue)
Watkins-Johnson Company, Inc.
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.