Granted Patent
Utility
US 5,632,402 · App. 08/587,753
Carton blank and method for forming it
Inventors:
Joseph C. Walsh, Robert L. Conatser
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Jan 17, 1996
Inventors
Joseph C. Walsh
Robert L. Conatser
Assignee (at issue)
Graphic Packaging 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.