Granted Patent
Utility
US 4,692,512 · App. 06/811,585
Alpha-L-aspartyl-D-phenylglycine esters and amides useful as high intensity sweeteners
Inventor:
John Michael Janusz
Patented Case
View Patent ↗
Granted: Sep 8, 1987
Filed: Dec 20, 1985
Inventor
John Michael Janusz
Assignee (at issue)
The Procter & Gamble 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.