Granted Patent
Utility
US 6,040,969 · App. 09/128,435
Power filter circuit responsive to supply system fault conditions
Inventors:
Peter Winch, Richard J. Billingsley
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Aug 4, 1998
Inventors
Peter Winch
Richard J. Billingsley
Assignee (at issue)
Electronic Systems Protection, Inc.
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.