Granted Patent
Utility
US 4,452,809 · App. 06/485,497
Trans-4-(2-chlorophenoxy)-1-ethyl-3-pyrrolidinol and anti-depressant use thereof
Inventors:
David A. Walsh, William J. Welstead, Jr.
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Apr 22, 1983
Inventors
David A. Walsh
William J. Welstead, Jr.
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.