Granted Patent
Utility
US 5,722,607 · App. 08/775,719
Hammermill
Inventor:
Uwe Hellmich
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Dec 19, 1996
Inventor
Uwe Hellmich
Assignee (at issue)
Sivyer Steel 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.