Granted Patent
Utility
US 6,680,353 · App. 09/830,355
Polyester resin composition and fiber
Inventors:
Jinichiro Kato, Tetsuko Takahashi
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Apr 25, 2001
Inventors
Jinichiro Kato
Tetsuko Takahashi
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.