Granted Patent
Utility
US 4,791,338 · App. 06/878,819
Fluorescent lamp circuit with regulation responsive to voltage, current, and phase of load
Inventors:
Thomas E. Dean, William H. Henrich
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Jun 26, 1986
Inventors
Thomas E. Dean
William H. Henrich
Assignee (at issue)
THOMAS 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.