Granted Patent
Utility
US 4,803,373 · App. 07/007,190
Conveyor arm apparatus with gap detection
Inventors:
Kazunori Imamura, Fuminori Hayano, Yukio Kakizaki, Jiro Kobayashi
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Jan 27, 1987
Inventors
Kazunori Imamura
Fuminori Hayano
Yukio Kakizaki
Jiro Kobayashi
Assignee (at issue)
NIKON CORPORATION
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.