Granted Patent
Utility
US 5,403,697 · App. 07/881,329
Positive radiation-sensitive mixture and recording material produced therefrom
Inventors:
Karl-Friedrich Doessel, Ralph R. Dammel, Juergen Lingnau
Patented Case
View Patent ↗
Granted: Apr 4, 1995
Filed: May 7, 1992
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.