Granted Patent
Utility
US 5,889,368 · App. 08/909,382
High intensity electrodeless discharge lamp with particular metal halide fill
Inventors:
Gerhard Doell, Walter P. Lapatovich
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Aug 11, 1997
Inventors
Gerhard Doell
Walter P. Lapatovich
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.