Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5661927 | Sliding counterbalance assembly for a sash window | Allen D. Polowinczak, Michael Bratcher, Mark V. Murphy | 1997-09-02 | $15,584,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5661927 | Sliding counterbalance assembly for a sash window | Allen D. Polowinczak, Michael Bratcher, Mark V. Murphy | 1997-09-02 | $15,584,000 |