Granted Patent
Utility
US 6,419,442 · App. 09/139,376
Mechanism and method for forming a stack of articles
Inventor:
Terrence E. O'Brien
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Aug 25, 1998
Inventor
Terrence E. O'Brien
Assignee (at issue)
Dorner Mfg. Corp.
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.