Granted Patent
Utility
US 5,442,115 · App. 08/260,147
Preparation of alpha-chloroacetoacetanilide compounds
Inventor:
Benjamin J. Pierce
Patented Case
View Patent ↗
Granted: Aug 15, 1995
Filed: Jun 15, 1994
Inventor
Benjamin J. Pierce
Assignee (at issue)
Uniroyal Chemical Company, 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.