Granted Patent
Utility
US 5,476,751 · App. 08/323,482
Phenylacetates and their use in radiation sensitive compositions
Inventor:
Alfred Steinmann
Patented Case
View Patent ↗
Granted: Dec 19, 1995
Filed: Oct 14, 1994
Inventor
Alfred Steinmann
Assignee (at issue)
Ciba-Geigy
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.