Granted Patent
Utility
US 4,494,046 · App. 06/572,600
Single cathode beam mode fluorescent lamp for DC use
Inventors:
A. Bowman Budinger, Wojciech W. Byszewski, Joseph M. Proud
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: Jan 20, 1984
Inventors
A. Bowman Budinger
Wojciech W. Byszewski
Joseph M. Proud
Assignee (at issue)
GTE Laboratories Incorporated
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.