Granted Patent
Utility
US 5,347,586 · App. 07/874,898
Adaptive system for controlling noise generated by or emanating from a primary noise source
Inventors:
Peter D. Hill, Thomas H. Putman
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Apr 28, 1992
Inventors
Peter D. Hill
Thomas H. Putman
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.