Granted Patent
Utility
US 6,232,411 · App. 09/322,633
Hydrogenated diglycidyl ethers of bipheny-4,4'-diol
Inventors:
Yoshinori Hara, Mareki Miura, Yoshinobu Ohnuma, Hiroko Takahashi
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: May 28, 1999
Inventors
Yoshinori Hara
Mareki Miura
Yoshinobu Ohnuma
Hiroko Takahashi
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.