Granted Patent
Utility
US 6,413,362 · App. 09/448,162
Method of steam treating low yield papermaking fibers to produce a permanent curl
Inventor:
Sheng-Hsin Hu
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Nov 24, 1999
Inventor
Sheng-Hsin Hu
Assignee (at issue)
Kimberly-Clark Worldwide, 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.