Granted Patent
Utility
US 6,740,400 · App. 10/066,712
Poly (trimethylene terephthalate) and a process for producing the same
Inventors:
Jinichiro Kato, Yoichiro Azuma, Katsuhiro Fujimoto, Teruhiko Matsuo
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Feb 6, 2002
Inventors
Jinichiro Kato
Yoichiro Azuma
Katsuhiro Fujimoto
Teruhiko Matsuo
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.