Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4263093 | Method for retaining textured surface of pressed ceiling board | — | 1981-04-21 |
| 4248647 | Method for producing acoustical ceiling tile faced with a smooth distortion free decorative thin plastic film | Vincent P. Herron | 1981-02-03 |