Granted Patent
Utility
US 4,617,620 · App. 06/388,350
DC to DC converter with self-starting flyback oscillator
Inventor:
Donald Speranza
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Jun 14, 1982
Inventor
Donald Speranza
Assignee (at issue)
Eaton 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.