Granted Patent
Utility
US 4,815,002 · App. 07/149,238
Obtaining a selected frequency component in rectangular coordinates from a set of electrical waveforms
Inventor:
William R. Verbanets
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Jan 27, 1988
Inventor
William R. Verbanets
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.