Granted Patent
Utility
US 6,660,208 · App. 09/822,554
Detoxification of solid freeform fabrication materials
Inventor:
Stephen Hanna
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Mar 30, 2001
Inventor
Stephen Hanna
Assignee (at issue)
3D Systems, Inc.
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.