Granted Patent
Utility
US 6,500,915 · App. 09/709,250
Polyester resin and its production process
Inventors:
Yoshihiro Fujimori, Shuuji Anno, Masahiro Nukui
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Nov 10, 2000
Inventors
Yoshihiro Fujimori
Shuuji Anno
Masahiro Nukui
Assignee (at issue)
MITSUBISHI CHEMICAL 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.