Granted Patent
Utility
US 6,590,149 · App. 09/826,306
Solar simulator with movable filter
Inventor:
Ralf Adelhelm
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Apr 5, 2001
Inventor
Ralf Adelhelm
Assignee (at issue)
ASTRIUM 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.