Granted Patent
Utility
US 5,364,741 · App. 08/003,167
Aqueous developable photosensitive polyurethane-(meth)acrylate
Inventors:
Truc-Chi Huynh-Tran, Ronald J. Kumpfmiller, Cynthia L. Ebner
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Jan 12, 1993
Inventors
Truc-Chi Huynh-Tran
Ronald J. Kumpfmiller
Cynthia L. Ebner
Assignee (at issue)
W.R. Grace & Co. Conn.
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.