Granted Patent
Utility
US 4,715,690 · App. 06/948,430
Photographic screen
Inventors:
Kaoru Onodera, Satoru Hohnishi, Kazuyuki Kobayashi, Kazuo Shiozawa
Patented Case
View Patent ↗
Granted: Dec 29, 1987
Filed: Dec 31, 1986
Inventors
Kaoru Onodera
Satoru Hohnishi
Kazuyuki Kobayashi
Kazuo Shiozawa
Assignee (at issue)
Konishiroku Photo Ind. 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.