Granted Patent
Utility
US 4,576,210 · App. 06/745,380
Duck bill filler nozzle
Inventor:
J. George Lepisto
Patented Case
View Patent ↗
Granted: Mar 18, 1986
Filed: Jun 17, 1985
Inventor
J. George Lepisto
Assignee (at issue)
Champion International Corporation Limited
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.