Granted Patent
Utility
US 6,402,132 · App. 09/642,754
Method of folding demand-printed webs into signatures for gathering in rotary gathering/binding machines and signatures produced thereby
Inventors:
A. John Michaelis, Stephen M. Purduski, James L. Warmus
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Aug 21, 2000
Inventors
A. John Michaelis
Stephen M. Purduski
James L. Warmus
Assignee (at issue)
R.R. DONNELLEY & SONS COMPANY
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.