Granted Patent
Utility
US 4,946,759 · App. 07/243,792
Positive radiation-sensitive mixture and radiation-sensitive recording material produced therefrom
Inventors:
Karl-Friedrich Doessel, Ralph R. Dammel, Juergen Lingnau
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Sep 13, 1988
Inventors
Karl-Friedrich Doessel
Ralph R. Dammel
Juergen Lingnau
Assignee (at issue)
Hoechst 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.