Granted Patent
Utility
US 5,150,541 · App. 07/597,404
Device for killing insects
Inventors:
James P. Foster, Philip V. Jennings
Patented Case
View Patent ↗
Granted: Sep 29, 1992
Filed: Oct 15, 1990
Inventors
James P. Foster
Philip V. Jennings
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.