Granted Patent
Utility
US 6,375,874 · App. 09/416,787
Method and apparatus for prototyping a three-dimensional object
Inventors:
David B. Russell, Timothy Anderson, James F. Bredt, Michael J. Vogel, Walter J. Bornhorst
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Oct 13, 1999
Inventors
David B. Russell
Timothy Anderson
James F. Bredt
Michael J. Vogel
Walter J. Bornhorst
Assignee (at issue)
Z-Firm, 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.