Granted Patent
Utility
US 4,670,566 · App. 06/572,006
3-methyl-hio-4-(5-, 6-, or 7-)phenylindolindolin-2-ones
Inventor:
David A. Walsh
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Jan 19, 1984
Inventor
David A. Walsh
Assignee (at issue)
A. H. Robins Company, Incorporated
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.