Granted Patent
Utility
US 6,235,847 · App. 09/486,989
Linear block copolymer and resin composition containing the same
Inventors:
Susumu Hoshi, Yukio Yamaura
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Mar 6, 2000
Inventors
Susumu Hoshi
Yukio Yamaura
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.