Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692628 | Press-on screw-off self-tapping closure/container package | James F. Whitehead, Clas Nilstoft | 1997-12-02 |
| 5690241 | Thread on-non-removable cap for a threaded neck container | — | 1997-11-25 |
| 5673808 | Heat treated plastic closure | Emery I. Valyi | 1997-10-07 |
| 5630522 | Dual contact plug seal for threaded closure | — | 1997-05-20 |