Granted Patent
Utility
US 6,753,749 · App. 10/455,635
Toroidal transformer enclosure
Inventor:
Kwong Kei Chin
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: Jun 5, 2003
Inventor
Kwong Kei Chin
Assignee (at issue)
Artesyn Technologies, 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.