Granted Patent
Utility
US 5,332,841 · App. 08/085,239
Preparation of 2,3-dihydro-2,2-dimethyl-7-benzofuranyl chloroformate with aqueous phase removal
Inventor:
Harry W. Weber, Jr.
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Jun 30, 1993
Inventor
Harry W. Weber, Jr.
Assignee (at issue)
FMC 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.