Granted Patent
Utility
US 6,780,368 · App. 09/829,548
Layer manufacturing of a multi-material or multi-color 3-D object using electrostatic imaging and lamination
Inventors:
Junhai Liu, Bor Z. Jang
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Apr 10, 2001
Inventors
Junhai Liu
Bor Z. Jang
Assignee (at issue)
Nanotek Instruments Group, LLC
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.