Granted Patent
Utility
US 4,774,649 · App. 07/069,426
Integrated magnetic resonant power converter
Inventor:
Michael Archer
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Jul 1, 1987
Inventor
Michael Archer
Assignee (at issue)
Power-One, 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.