Granted Patent
Utility
US 6,535,409 · App. 09/930,362
Industrial power supply modules
Inventor:
Gregory Michael Karol
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Aug 15, 2001
Inventor
Gregory Michael Karol
Assignee (at issue)
Invensys Systems, 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.