Granted Patent
Utility
US 6,211,101 · App. 09/350,129
Durable hydrophilic fiber and fabric using the same
Inventors:
Toshihiko Tsutsui, Masayasu Suzuki, Masahito Katsuya
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Jul 9, 1999
Inventors
Toshihiko Tsutsui
Masayasu Suzuki
Masahito Katsuya
Assignee (at issue)
Chisso Corporation
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.