Granted Patent
Utility
US 5,190,927 · App. 07/727,507
High-glyceryl, low-acetyl gellan gum for non-brittle gels
Inventors:
Helena Chang, Joseph M. Kobzeff
Patented Case
View Patent ↗
Granted: Mar 2, 1993
Filed: Jul 9, 1991
Inventors
Helena Chang
Joseph M. Kobzeff
Assignee (at issue)
MERCK & CO., 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.