Granted Patent
Utility
US 6,456,184 · App. 09/752,911
Reduced-cost core for an electrical-power transformer
Inventors:
Tri D. Vu, Varagur R. Ramanan, Arthur L. Lanni
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Dec 29, 2000
Inventors
Tri D. Vu
Varagur R. Ramanan
Arthur L. Lanni
Assignee (at issue)
ABB AG
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.