Granted Patent
Utility
US 6,168,847 · App. 09/026,196
Pre-folded stock material for use in a cushioning conversion machine
Inventors:
Cynthia S. Murphy, Richard O. Ratzel
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Feb 19, 1998
Inventors
Cynthia S. Murphy
Richard O. Ratzel
Assignee (at issue)
Ranpak 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.