Granted Patent
Utility
US 6,276,887 · App. 09/407,570
Method of forming board book signatures
Inventor:
Dennis R. Hughes
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Sep 28, 1999
Inventor
Dennis R. Hughes
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.