Granted Patent
Utility
US 6,676,404 · App. 09/846,700
Measuring device for a flame
Inventor:
Rainer Lochschmied
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: May 1, 2001
Inventor
Rainer Lochschmied
Assignee (at issue)
SIEMENS BUILDING TECHNOLOGIES AG
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.