Granted Patent
Utility
US 4,226,337 · App. 05/932,220
Laminated tube for collapsible containers and method of making same
Inventor:
Joseph Abbott
Patented Case
View Patent ↗
Granted: Oct 7, 1980
Filed: Aug 11, 1978
Inventor
Joseph Abbott
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.