Granted Patent
Utility
US 4,617,367 · App. 06/675,568
Methyl methacrylate syrup composition
Inventors:
Katsushi Watanabe, Takafumi Kageyama, Taisaku Kano, Koichi Hirai, Yoshinobu Ichihara
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Nov 28, 1984
Inventors
Katsushi Watanabe
Takafumi Kageyama
Taisaku Kano
Koichi Hirai
Yoshinobu Ichihara
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.