Granted Patent
Utility
US 4,433,265 · App. 06/156,104
Cooled discharge lamp having a fluid cooled diaphragm structure
Inventors:
Helmut Fischer, Jürgen Schäfer, Gunter Thomas
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Jun 3, 1980
Inventors
Helmut Fischer
Jürgen Schäfer
Gunter Thomas
Assignee (at issue)
Original Hanau Heraeus GmbH
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.