Granted Patent
Utility
US 5,192,981 · App. 07/516,784
Czerny-Turner monochromator
Inventors:
Warren S. Slutter, Joseph Marcovecchio, Robert E. Heinz, David A. Kolb
Patented Case
View Patent ↗
Granted: Mar 9, 1993
Filed: Apr 30, 1990
Inventors
Warren S. Slutter
Joseph Marcovecchio
Robert E. Heinz
David A. Kolb
Assignee (at issue)
Spex Industries, Inc.
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.