Granted Patent
Utility
US 4,399,443 · App. 06/336,026
Ink composition and method for ink jet recording
Inventors:
Yoshitaka Yasufuku, Yoshio Takeuchi, Yoshiaki Kimura
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Dec 30, 1981
Inventors
Yoshitaka Yasufuku
Yoshio Takeuchi
Yoshiaki Kimura
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.