Granted Patent
Utility
US 4,945,898 · App. 07/379,573
Power supply
Inventors:
James W. Pell, Richard E. Spielmaker, Arthur W. Zikorus
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Jul 12, 1989
Inventors
James W. Pell
Richard E. Spielmaker
Arthur W. Zikorus
Assignee (at issue)
Diasonics, 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.