Granted Patent
Utility
US 6,436,511 · App. 09/491,193
Cushioning conversion machine, method and product
Inventor:
Richard O. Ratzel
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Jan 25, 2000
Inventor
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.