Granted Patent
Utility
US 4,180,593 · App. 05/792,384
Process for producing round spherical free flowing blown bead food products of controlled bulk density
Inventor:
Allan N. Cohan
Patented Case
View Patent ↗
Granted: Dec 25, 1979
Filed: Apr 29, 1977
Inventor
Allan N. Cohan
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.