Granted Patent
Utility
US 4,332,830 · App. 06/189,243
Sweetening with stevioside analogs
Inventor:
Grant E. DuBois
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Sep 22, 1980
Inventor
Grant E. DuBois
Assignee (at issue)
Dynapol
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.