Granted Patent
Utility
US 4,507,378 · App. 06/558,994
Method for the production of toner for electrophotography and the toner produced thereby
Inventors:
Tsuneo Wada, Kiyoshi Tamaki, Hideki Murata, Sadatugu Terada, Hiroyuki Takagiwa
Patented Case
View Patent ↗
Granted: Mar 26, 1985
Filed: Dec 6, 1983
Inventors
Tsuneo Wada
Kiyoshi Tamaki
Hideki Murata
Sadatugu Terada
Hiroyuki Takagiwa
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.