Granted Patent
Utility
US 6,388,430 · App. 09/952,222
Buck regulator circuit for use in a power supply
Inventor:
Richard Eldridge
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Sep 13, 2001
Inventor
Richard Eldridge
Assignee (at issue)
THE ESAB GROUP 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.