Granted Patent
Utility
US 6,433,840 · App. 09/358,939
Method and apparatus for multi-level image alignment
Inventor:
Kenneth A. Poppleton
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Jul 22, 1999
Inventor
Kenneth A. Poppleton
Assignee (at issue)
Evans & Sutherland Computer 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.