Granted Patent
Utility
US 4,510,392 · App. 06/483,127
Autoradiogram marking process
Inventors:
Gerald J. Litt, Lloyd C. Litt
Patented Case
View Patent ↗
Granted: Apr 9, 1985
Filed: Apr 8, 1983
Inventors
Gerald J. Litt
Lloyd C. Litt
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.