Granted Patent
Utility
US 5,010,306 · App. 07/482,442
Low cost digital amplitude regulator
Inventors:
Walter G. Kutzavitch, Eugene J. Rosenthal
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Feb 20, 1990
Inventors
Walter G. Kutzavitch
Eugene J. Rosenthal
Assignee (at issue)
AT&T Bell Laboratories
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.