Granted Patent
Utility
US 5,117,057 · App. 07/715,843
Insecticidal N' substituted-N-N'-disubstituted-hydrazines
Inventors:
Adam C. Hsu, Harold E. Aller, Raymond A. Murphy, Dat Phat Le, Donald Wesley Hamp, Barry Weinstein
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Jun 14, 1991
Inventors
Adam C. Hsu
Harold E. Aller
Raymond A. Murphy
Dat Phat Le
Donald Wesley Hamp
Barry Weinstein
Assignee (at issue)
Rohm and Haas Company
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.