Granted Patent
Utility
US 6,578,983 · App. 10/081,962
Tubular lamp luminaire with convex and concave reflector sides
Inventor:
Petrus Adrianus Josephus Holten
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Feb 21, 2002
Inventor
Petrus Adrianus Josephus Holten
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.