Granted Patent
Utility
US 4,740,401 · App. 07/009,870
Forming laminated glass containers from a composite encapsulated gob of molten glass
Inventors:
Marvin L. Barkhau, Frank J. DiFrank, Paul W. L. Graham, Harry N. Mills
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Feb 2, 1987
Inventors
Marvin L. Barkhau
Frank J. DiFrank
Paul W. L. Graham
Harry N. Mills
Assignee (at issue)
Owens-Illinois Glass Container 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.