Granted Patent
Utility
US 6,148,710 · App. 09/354,918
Slitter-punch with quick adapter
Inventor:
Earl T. Pottorff
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Jul 12, 1999
Inventor
Earl T. Pottorff
Assignee (at issue)
Pearl Technologies, 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.