Granted Patent
Utility
US 5,206,250 · App. 07/676,062
Bis-naphthalimides containing amide and thioamide linkers as anticancer agents
Inventor:
Jung-Hui Sun
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Mar 27, 1991
Inventor
Jung-Hui Sun
Assignee (at issue)
The DuPont Merck Pharmaceutical 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.