Granted Patent
Utility
US 5,047,251 · App. 07/349,580
Stable peppermint oil having reduced pulegone content and method of producing the same
Inventor:
Jeffrey Spencer
Patented Case
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Granted: Sep 10, 1991
Filed: May 9, 1989
Inventor
Jeffrey Spencer
Assignee (at issue)
A. M. Todd 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.