Granted Patent
Utility
US 4,480,796 · App. 06/342,346
Pulping apparatus including improved rotor
Inventor:
Stavros Paraskevas
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Jan 25, 1982
Inventor
Stavros Paraskevas
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.