Granted Patent
Utility
US 6,256,213 · App. 09/338,724
Means for transformer rectifier unit regulation
Inventor:
Lewis Illingworth
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Jun 23, 1999
Inventor
Lewis Illingworth
Assignee (at issue)
Avionic Instruments, 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.