Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866911 | Method of forming a vacuum package with hermetic reclosure | Paul E. Grindrod, Darrell G. Cornish | 1989-09-19 |
| 4850504 | Spring ring easy-open positive-reclose hermetic food package | Paul E. Gindrod, Gerald O. Hustad | 1989-07-25 |
| 4823961 | Reclosable package | Gerald O. Hustad | 1989-04-25 |