Granted Patent
Utility
US 5,432,897 · App. 08/053,139
Method and an apparatus for editing tree structures in display
Inventors:
Tetsu Tatsumi, Toru Yamaguchi, Minoru EBISAWA
Patented Case
View Patent ↗
Granted: Jul 11, 1995
Filed: Apr 29, 1993
Inventors
Tetsu Tatsumi
Toru Yamaguchi
Minoru EBISAWA
Assignee (at issue)
NIPPON STEEL 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.