Granted Patent
Utility
US 6,228,923 · App. 09/096,100
Water soluble rapid prototyping support and mold material
Inventors:
John L. Lombardi, Dragan Popovich, Gregory Artz
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Jun 11, 1998
Inventors
John L. Lombardi
Dragan Popovich
Gregory Artz
Assignee (at issue)
Stratasys, 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.