Granted Patent
Utility
US 4,371,263 · App. 05/922,405
Double monochromator
Inventor:
Wolfgang Witte
Patented Case
View Patent ↗
Granted: Feb 1, 1983
Filed: Jul 6, 1978
Inventor
Wolfgang Witte
Assignee (at issue)
Bodenseewerk Perkin-Elmer 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.