Granted Patent
Utility
US 5,590,250 · App. 08/306,043
Layout of node-link structures in space with negative curvature
Inventors:
John O. Lamping, Ramana B. Rao
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Sep 14, 1994
Inventors
John O. Lamping
Ramana B. Rao
Assignee (at issue)
Xerox 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.