Granted Patent
Utility
US 6,813,124 · App. 10/177,703
Transformer over-current protection with RMS sensing and voltage fold-back
Inventor:
Martin Pierson
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Jun 21, 2002
Inventor
Martin Pierson
Assignee (at issue)
Lionel LLC
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.