Granted Patent
Utility
US 4,293,648 · App. 06/183,556
Process for esterification of .alpha.-L-aspartyl-L-phenylalanine
Inventor:
Arthur A. Davino
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Sep 2, 1980
Inventor
Arthur A. Davino
Assignee (at issue)
G.D. Searle LLC
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.