Granted Patent
Utility
US 5,289,046 · App. 07/896,250
Power converter with controller for switching between primary and battery power sources
Inventors:
James M. Gregorich, James A. Daly, Gerald J. Brand
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Jun 10, 1992
Inventors
James M. Gregorich
James A. Daly
Gerald J. Brand
Assignee (at issue)
Digital Equipment Corporation
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.