Granted Patent
Utility
US 4,842,980 · App. 07/221,569
Photosensitive materials containing ionic dye compounds as initiators
Inventors:
Peter Gottschalk, Douglas C. Neckers, Gary B. Schuster
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Jul 20, 1988
Inventors
Peter Gottschalk
Douglas C. Neckers
Gary B. Schuster
Assignee (at issue)
The Mead Corporation
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.