Granted Patent
Utility
US 4,550,073 · App. 06/610,843
Overcoated photohardenable element having surface protuberances
Inventors:
Melvin A. Neiss, Robert W. Woodruff
Patented Case
View Patent ↗
Granted: Oct 29, 1985
Filed: May 16, 1984
Inventors
Melvin A. Neiss
Robert W. Woodruff
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.