Granted Patent
Utility
US 4,983,674 · App. 07/230,456
Hot melt adhesive compositions
Inventors:
Hiromi Shigemoto, Masami Takeda, Tsuneaki Muro
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: Aug 10, 1988
Inventors
Hiromi Shigemoto
Masami Takeda
Tsuneaki Muro
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.