Granted Patent
Utility
US 4,985,516 · App. 07/418,975
Curable composition
Inventors:
Takeshi Sakashita, Masami Arata, Takashi Yamamoto
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Oct 10, 1989
Inventors
Takeshi Sakashita
Masami Arata
Takashi Yamamoto
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.