Granted Patent
Utility
US 6,641,346 · App. 09/778,383
Automatic paper feeder for paper hole punch
Inventor:
Frank Bagrosky
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Feb 5, 2001
Inventor
Frank Bagrosky
Assignee (at issue)
Performance Design, LLC
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.