Granted Patent
Utility
US 5,991,702 · App. 08/972,039
Axisymmetric figure shaping device for generating curvilinear figure precisely axisymmetric with respect to axis of symmetry and method therefor
Inventor:
Shigeru Saito
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Nov 17, 1997
Inventor
Shigeru Saito
Assignee (at issue)
NEC 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.