Granted Patent
Utility
US 4,641,233 · App. 06/730,009
AC to DC converter with voltage regulation
Inventor:
Richard D. Roy
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: May 3, 1985
Inventor
Richard D. Roy
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.