Spencer, Jr.; Darwin D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spencer, Jr.; Darwin D..The latest application filed is for "cushion back cutter".
- Spencer, Jr.; Darwin D. - Centennial CO
- - Centennial CO US
- Spencer, Jr.; Darwin D. - Milpitas CA
| Patent | Date |
|---|---|
| Angle tapping block Grant 10,934,725 - Suwyn , et al. March 2, 2 | 2021-03-02 |
| Angle Tapping Block App 20200256069A1 - | 2020-08-13 |
| Cushion back cutter Grant 10,315,318 - Spencer, Jr. , et al. | 2019-06-11 |
| Cushion Back Cutter App 20170239824 - Spencer, JR.; Darwin D. ; et al. | 2017-08-24 |
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