Granted Patent
Utility
US 6,335,093 · App. 09/600,838
Composite crimped yarn
Inventors:
Toshiaki Mori, Hiroshi Yamazaki
Patented Case
View Patent ↗
Granted: Jan 1, 2002
Filed: Jul 24, 2000
Inventors
Toshiaki Mori
Hiroshi Yamazaki
Assignee (at issue)
ASAHI KASEI KABUSHIKI KAISHA
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.