Granted Patent
Utility
US 6,156,679 · App. 09/125,506
Heat-fusible composite fiber and non-woven fabric produced from the same
Inventors:
Yukinori Takaoka, Mitsuru Kojima, Masayasu Suzuki
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Aug 20, 1998
Inventors
Yukinori Takaoka
Mitsuru Kojima
Masayasu Suzuki
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.