Granted Patent
Utility
US 6,410,139 · App. 09/674,384
Split type conjugate fiber, method for producing the same and fiber formed article using the same
Inventors:
Toshihiko Tsutsui, Mitsuru Kojima, Masayasu Suzuki, Kazuyuki Sakamoto, Masaru Nishijima
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Oct 31, 2000
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.