Granted Patent
Utility
US 4,407,807 · App. 06/332,568
Pyridylpropyl cycloalkanecarboxylates: insect repellents
Inventor:
Rayman Y. Wong
Patented Case
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Granted: Oct 4, 1983
Filed: Dec 21, 1981
Inventor
Rayman Y. Wong
Assignee (at issue)
Stauffer Chemical 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.