Granted Patent
Utility
US 4,485,241 · App. 06/463,429
Reduction of indole-2-carboxylic acids to indoline-2-carboxylic acids with lithium, sodium, or potassium in ammonia
Inventor:
Henry G. Schouten
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Feb 3, 1983
Inventor
Henry G. Schouten
Assignee (at issue)
Amerimas Home Products, 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.