Granted Patent
Utility
US 6,173,512 · App. 09/298,058
Scarifying machine with re-entering back wheels
Inventor:
Romolo Bitelli
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Apr 22, 1999
Inventor
Romolo Bitelli
Assignee (at issue)
Bitelli SpA
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.