Granted Patent
Utility
US 5,466,739 · App. 08/323,056
Water-based maskant composition and chemical milling method using the same
Inventors:
Tukasa Maeda, Yasuhiko Sasagawa, Yorinobu Ikeda, Teruo Hiraharu
Patented Case
View Patent ↗
Granted: Nov 14, 1995
Filed: Oct 14, 1994
Inventors
Tukasa Maeda
Yasuhiko Sasagawa
Yorinobu Ikeda
Teruo Hiraharu
Assignee (at issue)
Japan Synthetic Rubber Corporation
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.