Granted Patent
Utility
US 6,475,579 · App. 09/370,642
Multi-layer plastic container having a carbon-treated internal surface and method for making the same
Inventor:
William A. Slat
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Aug 6, 1999
Inventor
William A. Slat
Assignee (at issue)
Plastipak Packaging, 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.