Granted Patent
Utility
US 6,474,474 · App. 09/381,460
Sheet support container
Inventors:
Yukihiro Hyobu, Yasunori Oka
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Sep 21, 1999
Inventors
Yukihiro Hyobu
Yasunori Oka
Assignees (at issue)
SUMITOMO METAL INDUSTRIES, LTD.
Kakizaki Manufacturing 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.