Granted Patent
Utility
US 6,502,716 · App. 09/829,608
Duct corner dispenser and method of dispensing duct corners
Inventor:
John R. Kolesar
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Apr 10, 2001
Inventor
John R. Kolesar
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.