Granted Patent
Utility
US 5,582,768 · App. 08/547,183
Phosphor and method of making same
Inventors:
Vaddi B. Reddy, Ronald E. Karam, Shellie K. Northrop
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Oct 24, 1995
Inventors
Vaddi B. Reddy
Ronald E. Karam
Shellie K. Northrop
Assignee (at issue)
OSRAM SYLVANIA 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.