Granted Patent
Utility
US 6,409,372 · App. 09/583,029
Capped electric lamp
Inventors:
Ralph Hubert Peters, Hendrikus A. M. Van Dulmen, Wilhelmus J. M. Manders
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: May 30, 2000
Inventors
Ralph Hubert Peters
Hendrikus A. M. Van Dulmen
Wilhelmus J. M. Manders
Assignee (at issue)
KONINKLIJKE PHILIPS ELECTRONICS NV
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.