Granted Patent
Utility
US 4,283,434 · App. 06/140,064
Sulfamo dihydrochalcone sweeteners
Inventors:
Grant E. DuBois, Rebecca A. G. Stephenson
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Apr 14, 1980
Inventors
Grant E. DuBois
Rebecca A. G. Stephenson
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.