Granted Patent
Utility
US 5,072,766 · App. 07/637,037
Panel shutter assembly
Inventors:
Kohichi Kondoh, Fumio Yagi
Patented Case
View Patent ↗
Granted: Dec 17, 1991
Filed: Jan 3, 1991
Inventors
Kohichi Kondoh
Fumio Yagi
Assignee (at issue)
BUNKA SHUTTER 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.