Granted Patent
Utility
US 5,003,453 · App. 07/440,967
Apparatus for a balanced three phase AC power supply in a computer having variable DC loads
Inventors:
Donald J. Tighe, Joseph S. Neilson
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Nov 22, 1989
Inventors
Donald J. Tighe
Joseph S. Neilson
Assignee (at issue)
Tandem Computers Incorporated
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.