Granted Patent
Utility
US 6,066,436 · App. 08/708,805
Aqueous developable photosensitive polyurethane-methacrylate
Inventors:
Ronald J. Kumpfmiller, Martin Lewis Carter
Patented Case
View Patent ↗
Granted: May 23, 2000
Filed: Sep 9, 1996
Inventors
Ronald J. Kumpfmiller
Martin Lewis Carter
Assignee (at issue)
Polyfibron Technologies, Inc.
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.