Granted Patent
Utility
US 6,077,930 · App. 09/079,230
Preparation process of polymer
Inventors:
Tadahito Nobori, Shinji Kiyono, Takaomi Hayashi, Usaji Takaki
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: May 15, 1998
Inventors
Tadahito Nobori
Shinji Kiyono
Takaomi Hayashi
Usaji Takaki
Assignee (at issue)
MITSUI CHEMICALS, INC.
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.