Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5415340 | Heat sealed paperboard carton having a patterned solvent-based polymer coating on one side only | Barry G. Calvert | 1995-05-16 |
| 5228272 | Product and process for heat sealing a paperboard carton having polymer coating on one side only | Barry G. Calvert | 1993-07-20 |
| 5217159 | Heat sealed paperboard carton having polymer coating on one side only | Barry G. Calvert | 1993-06-08 |