Granted Patent
Utility
US 5,397,949 · App. 08/075,073
Vibration cancellation apparatus with line frequency components
Inventors:
Richard F. Guardiani, Thomas Geiger
Patented Case
View Patent ↗
Granted: Mar 14, 1995
Filed: Jun 10, 1993
Inventors
Richard F. Guardiani
Thomas Geiger
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.