Granted Patent
Utility
US 5,965,983 · App. 08/982,562
Electric lamp with a coating containing a metal oxide pigment for displaying formation
Inventors:
Anna Louise Bouwkamp-Wijnoltz, Petrus E. J. Legierse, Guybert M. C. Derks
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Dec 2, 1997
Inventors
Anna Louise Bouwkamp-Wijnoltz
Petrus E. J. Legierse
Guybert M. C. Derks
Assignee (at issue)
U.S. Philips Corporation
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.