Granted Patent
Utility
US 6,778,871 · App. 10/040,537
Piping and structural component design and fabrication system
Inventors:
Allen Holman, Curtis Broughton
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Dec 28, 2001
Inventors
Allen Holman
Curtis Broughton
Assignee (at issue)
QuickPen International, 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.