Granted Patent
Utility
US 6,454,496 · App. 09/672,902
System for loading and unloading polystyrene pellets into and from a trailer
Inventors:
Suzanne M. Mills, William J. Grenier, Nelson Wilber, Donald R. Rogers
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Sep 29, 2000
Inventors
Suzanne M. Mills
William J. Grenier
Nelson Wilber
Donald R. Rogers
Assignee (at issue)
Berry Plastics Design Corporation
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.