Granted Patent
Utility
US 6,617,023 · App. 10/153,133
Splittable multi-component fiber, method for producing it, and fibrous article comprising it
Inventors:
Toshihiko Tsutsui, Mitsuru Kojima, Masayasu Suzuki, Kazuyuki Sakamoto, Masaru Nishijima
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: May 21, 2002
Inventors
Toshihiko Tsutsui
Mitsuru Kojima
Masayasu Suzuki
Kazuyuki Sakamoto
Masaru Nishijima
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.