Granted Patent
Utility
US 4,457,882 · App. 06/448,976
Centrifugally powered pelletizing machine and method
Inventors:
David B. Todd, James Layfield
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Dec 13, 1982
Inventors
David B. Todd
James Layfield
Assignee (at issue)
Baker Perkins 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.