Granted Patent
Utility
US 4,438,110 · App. 06/372,668
Chewing insect toxicant compositions
Inventor:
Hafez M. Ayad
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Apr 28, 1982
Inventor
Hafez M. Ayad
Assignee (at issue)
Union Carbide 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.