Granted Patent
Utility
US 4,473,288 · App. 06/447,524
Photographic device with screen for controlling gradation of photographed image
Inventors:
Kaoru Onodera, Satoru Hohnishi, Kazuyuki Kobayashi, Kazuo Shiozawa
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Dec 7, 1982
Inventors
Kaoru Onodera
Satoru Hohnishi
Kazuyuki Kobayashi
Kazuo Shiozawa
Assignee (at issue)
Konishiroku Photo Industry 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.