Granted Patent
Utility
US 4,748,057 · App. 06/804,321
Coating method
Inventors:
Takashi Kageyama, Makoto Yoshida
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Dec 3, 1985
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.