Granted Patent
Utility
US 4,500,616 · App. 06/419,940
Extraction developing method for electrostatic latent images
Inventors:
Satoshi Haneda, Masahiko Itaya, Minoru Tanaka
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: Sep 20, 1982
Inventors
Satoshi Haneda
Masahiko Itaya
Minoru Tanaka
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.