Granted Patent
Utility
US 4,959,608 · App. 07/422,335
Apparatus and method for extracting the RMS value from a signal
Inventor:
Norman G. Dillman
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Oct 16, 1989
Inventor
Norman G. Dillman
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.