Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D386338 | Cup dispenser | Frederick B. Hadtke | 1997-11-18 |
| D381267 | Cup lid | Margaret Virginia Graver, Michael Thomas Grolemund | 1997-07-22 |
| D381268 | Cup lid | Margaret Virginia Graver, Michael Thomas Grolemund | 1997-07-22 |
| 5641524 | Method and apparatus for vacuum/pressure thermoforming | John R. Johnson | 1997-06-24 |