Granted Patent
Utility
US 6,787,704 · App. 09/850,657
Method and apparatus for increasing the rating of a transformer
Inventor:
Donald W. Owen
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: May 7, 2001
Inventor
Donald W. Owen
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.