Granted Patent
Utility
US 4,730,077 · App. 06/888,538
Method of preparing .alpha.-arylalkanoic esters
Inventor:
Robert Chapman
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Jul 12, 1986
Inventor
Robert Chapman
Assignee (at issue)
MALLINCKRODT LLC
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.