Granted Patent
Utility
US 4,377,698 · App. 06/166,209
2,4 Bis(2-indolyl-3)-4-oxobutanoic acids
Inventors:
Nathan N. Crounse, Paul Schmidt
Patented Case
View Patent ↗
Granted: Mar 22, 1983
Filed: Jul 7, 1980
Inventors
Nathan N. Crounse
Paul Schmidt
Assignee (at issue)
Sterling Drug, 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.