Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676597 | Vented hip, ridge and rake composite shingle | Steven C. Bettoli | 1997-10-14 |
| D383223 | Foldable hip and ridge roofing shingle | Frederick W. Sieling, William R. Carroll | 1997-09-02 |