Granted Patent
Utility
US 6,530,516 · App. 09/990,407
Self-deploying carton bottom
Inventor:
Karl M. Ritter
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: Nov 21, 2001
Inventor
Karl M. Ritter
Assignee (at issue)
Stone Container Corporation
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.