Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887746 | Two-piece screw closure for containers | — | 1989-12-19 |
| 4869399 | Plastic cap assembly for containers in which the neck is sealed by a foil or membrane | — | 1989-09-26 |
| 4854473 | Single-piece snap hinge closure | — | 1989-08-08 |
| 4802597 | Plastic stopper for a container, with a measuring cup that serves as a cap | — | 1989-02-07 |