IP Library Granted Patent US 4,439,460
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,439,460
App. No.
06/383,393
Filed
1982-06-01
Granted
1984-03-27
Kind
A