Granted Patent
Utility
US 4,410,144 · App. 06/238,363
Synchronously coordinated counterrotated crusher roll teeth system
Inventor:
Aldo P. Imperi
Patented Case
View Patent ↗
Granted: Oct 18, 1983
Filed: Feb 26, 1981
Inventor
Aldo P. Imperi
Assignee (at issue)
General Steel Industries, Inc.
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.