Granted Patent
Utility
US 5,237,240 · App. 07/802,117
Mercury vapor discharge lamp containing device for heating amalgam-forming material
Inventor:
Andre C. Bouchard
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Dec 4, 1991
Inventor
Andre C. Bouchard
Assignee (at issue)
GTE Products 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.