Granted Patent
Utility
US 6,590,648 · App. 09/607,281
Apparatus for measuring light
Inventors:
Adrian von Orelli, Peter Ehbets
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Jun 30, 2000
Inventors
Adrian von Orelli
Peter Ehbets
Assignee (at issue)
GretagMacbeth, LLC
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.