Granted Patent
Utility
US 4,358,599 · App. 06/272,806
Synthesis of 4-amino-1,2-hydrocarbyl pyrazolidines via 4-nitro analogs
Inventors:
Young S. Lo, Harry R. Munson, Jr.
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Jun 11, 1981
Inventors
Young S. Lo
Harry R. Munson, 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.