Granted Patent
Utility
US 5,169,573 · App. 07/651,950
Method of forming three-dimensional pattern
Inventors:
Katsunori TSUCHIDA, Yasuo Watanabe, Yasuyuki Suzuki
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Feb 7, 1991
Inventors
Katsunori TSUCHIDA
Yasuo Watanabe
Yasuyuki Suzuki
Assignee (at issue)
Mitsui Petrochemical Industries, 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.