Granted Patent
Utility
US 4,749,513 · App. 07/103,781
Green emitting phosphor
Inventors:
John Collins, Romano G. Pappalardo, Baldassare Di Bartolo, Thomas E. Peters
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Oct 2, 1987
Inventors
John Collins
Romano G. Pappalardo
Baldassare Di Bartolo
Thomas E. Peters
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.