Granted Patent
Utility
US 6,140,769 · App. 09/202,909
Electric incandescent lamp with sintered body glass plate
Inventors:
Ursula Bruggemann, Wilfried L. Kohlmann, Jacques M.J. Geboers, Antonius J. M. Van Hees
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Dec 23, 1998
Inventors
Ursula Bruggemann
Wilfried L. Kohlmann
Jacques M.J. Geboers
Antonius J. M. Van Hees
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.