Granted Patent
Utility
US 4,795,676 · App. 06/943,944
Electrostatic recording material
Inventors:
Toshio Maekawa, Hiroshige Yamauchi, Takashi Toyota, Akeo Sawayama, Masaaki Yamanaka
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Dec 9, 1986
Inventors
Toshio Maekawa
Hiroshige Yamauchi
Takashi Toyota
Akeo Sawayama
Masaaki Yamanaka
Assignee (at issue)
Oji Paper 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.