Granted Patent
Utility
US 5,702,643 · App. 08/637,146
ZnS:Cu electroluminescent phosphor and method of making same
Inventors:
Vaddi B. Reddy, Kenneth T. Reilly
Patented Case
View Patent ↗
Granted: Dec 30, 1997
Filed: Apr 24, 1996
Inventors
Vaddi B. Reddy
Kenneth T. Reilly
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.