Granted Patent
Utility
US 4,870,920 · App. 07/097,326
Process of smoothing a coated-layer and the apparatus for use in such method
Inventors:
Takashi Kageyama, Makoto Yoshida
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Sep 11, 1987
Inventors
Takashi Kageyama
Makoto Yoshida
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.