Granted Patent
Utility
US 5,813,667 · App. 08/757,940
Sheet delivery device
Inventors:
Tsuneo Imai, Akiko Shibuya
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Nov 27, 1996
Inventors
Tsuneo Imai
Akiko Shibuya
Assignee (at issue)
HITACHI, 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.