Granted Patent
Utility
US 4,982,016 · App. 07/361,888
Conversion of diethyl phenylmalonate to 2-phenyl-1,3-propanediol
Inventor:
Young Mi Choi
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Jun 6, 1989
Inventor
Young Mi Choi
Assignee (at issue)
Carter Wallace, Inc.
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.