Granted Patent
Utility
US 4,890,217 · App. 07/312,404
Universal power supply, independent converter stages for respective hardware components of a computerized system
Inventor:
David W. Conway
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Feb 17, 1989
Inventor
David W. Conway
Assignee (at issue)
Norand 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.