Granted Patent
Utility
US 4,868,256 · App. 07/226,258
Process for the production of 3-mono or 3,5-disubstituted-4-acetoxystyrene its polymerization, and hydrolysis
Inventors:
Mohammad Aslam, Richard Vicari, Ralph R. Dammel, Juergen Lingnau, Karl-Friedrich Doessel
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Aug 2, 1988
Inventors
Mohammad Aslam
Richard Vicari
Ralph R. Dammel
Juergen Lingnau
Karl-Friedrich Doessel
Assignee (at issue)
Hoechst Celanese Corporation
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.