Granted Patent
Utility
US 6,395,196 · App. 09/609,525
Process for producing electroluminescent phosphor with extended half-life
Inventors:
Richard G. W. Gingerich, Clarence D. Vanderpool
Patented Case
View Patent ↗
Granted: May 28, 2002
Filed: Jul 3, 2000
Inventors
Richard G. W. Gingerich
Clarence D. Vanderpool
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.