Granted Patent
Utility
US 5,275,884 · App. 07/940,398
Split fibers, integrated split fiber articles and method for preparing the same
Inventors:
Kazunari Nishino, Shuzo Sasagawa, Hirofumi Katsurayama, Takamitsu Igaue, Tsutomu Kido
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Sep 3, 1992
Inventors
Kazunari Nishino
Shuzo Sasagawa
Hirofumi Katsurayama
Takamitsu Igaue
Tsutomu Kido
Assignees (at issue)
Mitsui Petrochemical Industries, Ltd.
Unicharm 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.