Granted Patent
Utility
US 5,525,661 · App. 08/427,311
Polymer solution for sizing paper
Inventor:
Kang I. Lee
Patented Case
View Patent ↗
Granted: Jun 11, 1996
Filed: Apr 21, 1995
Inventor
Kang I. Lee
Assignee (at issue)
Monsanto Company
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.