Granted Patent
Utility
US 4,439,460 · App. 06/383,393
Dipeptide sweetener sulfate and sulfonate salts
Inventors:
Josef H. Tsau, James G. Young
Patented Case
View Patent ↗
Granted: Mar 27, 1984
Filed: Jun 1, 1982
Inventors
Josef H. Tsau
James G. Young
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.