Granted Patent
Utility
US 4,628,431 · App. 06/681,156
Power supply on/off switching with inrush limiting
Inventor:
Dennis J. Kayser
Patented Case
View Patent ↗
Granted: Dec 9, 1986
Filed: Dec 12, 1984
Inventor
Dennis J. Kayser
Assignee (at issue)
Wang Laboratories, 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.