Granted Patent
Utility
US 3,965,174 · App. 05/596,544
Process for preparing N,N-disubstituted acid hydrazides
Inventors:
Russell E. Malz, Jr., Roger W. Amidon, Harold Greenfield
Patented Case
View Patent ↗
Granted: Jun 22, 1976
Filed: Jul 16, 1975
Inventors
Russell E. Malz, Jr.
Roger W. Amidon
Harold Greenfield
Assignee (at issue)
Uniroyal Ltd.
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.