Portnoff; Neil
Patent Applications and Registrations
Patent applications and USPTO patent grants for Portnoff; Neil.The latest application filed is for "rotatable cutting bit".
- Portnoff; Neil - Towanda PA
- Portnoff; Neil - Madisonville KY
| Patent | Date |
|---|---|
| Rotatable cutting bit Grant RE38,151 - Penkunas , et al. June 24, 2 | 2003-06-24 |
| Rotatable cutting bit Grant 4,865,392 - Penkunas , et al. * September 12, 1 | 1989-09-12 |
| Rotatable cutting bit Grant 4,725,099 - Penkunas , et al. February 16, 1 | 1988-02-16 |
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