Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923230 | Self-contained security lock for double-hung window | — | 1990-05-08 |
| 4901475 | Externally mounted latch for slidable sash window | — | 1990-02-20 |
| 4837975 | Externally mounted latch for slidable sash window | — | 1989-06-13 |
| 4824154 | Security lock for double-hung window | — | 1989-04-25 |
| 4791756 | Latch for pivotal sash window | — | 1988-12-20 |
| D292667 | Locking pin | — | 1987-11-10 |
| 4622778 | Latch and corner support for pivotal window sash | — | 1986-11-18 |
| 4619122 | Threadably engaged locking mechanism | — | 1986-10-28 |
| 4581850 | Combination pivot corner and slide guide for sash window | — | 1986-04-15 |
| 4578903 | Corner locking and associated pivot means for extruded plastic sash windows | — | 1986-04-01 |
| 4553353 | Latch for pivotal sash window | — | 1985-11-19 |