Granted Patent
Utility
US 4,586,650 · App. 06/746,885
Blank structure with indented fold lines for a cardboard container
Inventors:
Kazuo Sasaki, Yoichi Nishiguchi, Shinzo Saito
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jun 20, 1985
Inventors
Kazuo Sasaki
Yoichi Nishiguchi
Shinzo Saito
Assignee (at issue)
Jujo Paper Co., 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.