Granted Patent
Utility
US 4,473,628 · App. 06/558,993
Toner for developing of electrostatic latent image
Inventors:
Takahira Kasuya, Hideaki Morita, Goichi Yamakawa, Makoto Tomono, Isao Furuta, Minoru Tsuneyoshi
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Dec 6, 1983
Inventors
Takahira Kasuya
Hideaki Morita
Goichi Yamakawa
Makoto Tomono
Isao Furuta
Minoru Tsuneyoshi
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.