Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820799 | Expandable envelope construction | Marvin A. Makofsky | 2004-11-23 |
| 6564994 | Expandable envelope construction | Marvin A. Makofsky | 2003-05-20 |
| D452267 | Expandable envelope with a closure flap | Marvin A. Makofsky | 2001-12-18 |
| 6227444 | Expandable envelope construction | Marvin A. Makoesky | 2001-05-08 |
| 6116651 | Expanable folder | Marvin A. Makofsky | 2000-09-12 |
| 5377904 | One piece mailer form and method of processing | Irving R. Michlin | 1995-01-03 |