Granted Patent
Utility
US 4,591,522 · App. 06/688,856
Liquid photopolymers curable to fire-retardant, hydrolysis resistant compositions
Inventors:
Uan G. Kang, Richard Bush, Arthur D. Ketley, Clifford Alvin Ferrin, Jr.
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Jan 4, 1985
Inventors
Uan G. Kang
Richard Bush
Arthur D. Ketley
Clifford Alvin Ferrin, Jr.
Assignee (at issue)
W. R. Grace & Co.
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.