Granted Patent
Utility
US 4,310,035 · App. 06/132,687
Shielding in packaging of liquids in heatsealable flexible packaging
Inventor:
Howard Turner
Patented Case
View Patent ↗
Granted: Jan 12, 1982
Filed: Mar 21, 1980
Inventor
Howard Turner
Assignee (at issue)
Ludlow Company LP
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.