Granted Patent
Utility
US 4,284,541 · App. 06/093,497
Hot-melt pressure sensitive adhesive compound
Inventors:
Masami Takeda, Riichiro Nagano
Patented Case
View Patent ↗
Granted: Aug 18, 1981
Filed: Nov 13, 1979
Inventors
Masami Takeda
Riichiro Nagano
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.