Granted Patent
Utility
US 5,223,536 · App. 07/734,421
1,4-diaryl-1-cyclopropyl-4-substituted butanes as insecticides and acaricides
Inventors:
Thomas G. Cullen, Scott McN. Sieburth, Gary A. Meier, John F. Engel
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Jul 23, 1991
Inventors
Thomas G. Cullen
Scott McN. Sieburth
Gary A. Meier
John F. Engel
Assignee (at issue)
FMC CORPORATION
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.