Granted Patent
Utility
US 5,470,964 · App. 08/116,180
Process for the preparation of modified polysaccharides having improved absorbent properties
Inventor:
Jian Qin
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Sep 2, 1993
Inventor
Jian Qin
Assignee (at issue)
Kimberly-Clark 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.