Granted Patent
Utility
US 4,861,629 · App. 07/137,832
Polyfunctional ethylenically unsaturated cellulosic polymer-based photocurable compositions
Inventor:
Steven Harold Nahm
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Dec 23, 1987
Inventor
Steven Harold Nahm
Assignee (at issue)
HERCULES LLC
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.