Granted Patent
Utility
US 4,885,697 · App. 07/240,356
Method of identifying spectra
Inventor:
Romeo J. Hubner
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Sep 1, 1988
Inventor
Romeo J. Hubner
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.