Granted Patent
Utility
US 6,698,570 · App. 10/134,788
Object conveying device
Inventor:
Kiyoshi Takai
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Apr 30, 2002
Inventor
Kiyoshi Takai
Assignee (at issue)
Sony Disc Technology Inc.
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.