Granted Patent
Utility
US 4,558,136 · App. 06/746,949
Preparation of 2-benzoxazolinones
Inventor:
Alan W. White
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Jun 21, 1985
Inventor
Alan W. White
Assignee (at issue)
EASTMAN KODAK COMPANY
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.