Granted Patent
Utility
US 4,378,482 · App. 06/257,824
Electron-beam stage X-Y positioning instrumentation
Inventor:
Theodore W. Tucker
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Apr 27, 1981
Inventor
Theodore W. Tucker
Assignee (at issue)
Control Data 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.