Granted Patent
Utility
US 5,247,088 · App. 07/738,086
Process for the continuous preparation of perylenetetracarboxylic diimides
Inventor:
Thomas R. Flatt
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Jul 30, 1991
Inventor
Thomas R. Flatt
Assignee (at issue)
Miles 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.