Granted Patent
Utility
US 5,456,587 · App. 08/332,214
Plastic pellet delivery system
Inventor:
Keith W. Ingram
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Oct 31, 1994
Inventor
Keith W. Ingram
Assignee (at issue)
Owens-Illinois Closure 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.