Granted Patent
Utility
US 5,789,520 · App. 08/769,519
Curing agent for resins and resin composition containing the same
Inventors:
Minato Karasawa, Takeya Abe, Takuji Shimizu, Takeshi Iwaki
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Dec 19, 1996
Inventors
Minato Karasawa
Takeya Abe
Takuji Shimizu
Takeshi Iwaki
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.