Granted Patent
Utility
US 6,137,217 · App. 07/937,936
Fluorescent lamp with improved phosphor blend
Inventors:
Romano G. Pappalardo, Roger B. Hunt, Jr.
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Aug 28, 1992
Inventors
Romano G. Pappalardo
Roger B. Hunt, Jr.
Assignee (at issue)
GTE Products Corporation
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.