Granted Patent
Utility
US 5,594,086 · App. 08/487,944
Preparation and use of poly(3,5 disubstituted-4-hydroxystyrene/n-substituted maleimide)
Inventor:
Richard Vicari
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Jun 7, 1995
Inventor
Richard Vicari
Assignee (at issue)
Hoechst Colanese Corp
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.