Granted Patent
Utility
US 5,870,270 · App. 08/002,411
Non-burnout controller for a switching coil
Inventors:
H. Lee Riley, Kwok-Wah Leung
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Jan 2, 1998
Inventors
H. Lee Riley
Kwok-Wah Leung
Assignee (at issue)
Bachmann Industries, 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.