Granted Patent
Utility
US 4,285,764 · App. 06/028,279
Method and apparatus for producing corrugated combined board
Inventor:
Nazzareno Salvai
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: Apr 9, 1979
Inventor
Nazzareno Salvai
Assignee (at issue)
Beloit 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.