Granted Patent
Utility
US 4,841,281 · App. 07/064,148
Apparatus for controlling a switching amplifier
Inventor:
Waymon A. Melvin, Jr.
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Jun 16, 1987
Inventor
Waymon A. Melvin, Jr.
Assignee (at issue)
Westinghouse Electric Company LLC
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.