Granted Patent
Utility
US 5,386,971 · App. 08/095,463
Plastic pellet delivery system and method of use
Inventor:
Keith W. Ingram
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Jul 22, 1993
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.