Granted Patent
Utility
US 5,894,413 · App. 08/789,882
Redundant power supply switchover circuit
Inventor:
Bruce R. Ferguson
Patented Case
View Patent ↗
Granted: Apr 13, 1999
Filed: Jan 28, 1997
Inventor
Bruce R. Ferguson
Assignees (at issue)
SONY GROUP CORPORATION
Sony Trans Com 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.