Granted Patent
Utility
US 5,554,404 · App. 08/344,322
Leavening acid composition
Inventor:
Frank H. Y. Chung
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Nov 22, 1994
Inventor
Frank H. Y. Chung
Assignee (at issue)
Rhone-Poulenc, Inc.
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.