Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879147 | Polymeric multilayer sheet suitable for the manufacture of microwaveable containers | Frederick C. Newman | 1989-11-07 |
| 4810541 | Plastic container having a surface to which a lid may be peelably sealed | Frederick C. Newman | 1989-03-07 |