Granted Patent
Utility
US 6,178,640 · App. 09/370,192
Slitter device
Inventor:
Earl Votolato
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Aug 9, 1999
Inventor
Earl Votolato
Assignee (at issue)
Spellbound Development Group, 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.