Granted Patent
Utility
US 5,651,920 · App. 08/717,334
Small-sized lanthanum cerium terbium phosphate phosphors and method of making
Inventors:
Chung-Nin Chau, Jenace A. Yurchisin
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Sep 20, 1996
Inventors
Chung-Nin Chau
Jenace A. Yurchisin
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.