Westerdal; Roland
Patent Applications and Registrations
Patent applications and USPTO patent grants for Westerdal; Roland.The latest application filed is for "reading safety glasses".
- Westerdal; Roland - Brookfield CT
- Westerdal; Roland - Bethel CT
- Westerdal; Roland - Great Falls VA
| Patent | Date |
|---|---|
| Safety helmet Grant D648,899 - Westerdal November 15, 2 | 2011-11-15 |
| Protective ear cup Grant D544,650 - Westerdal June 12, 2 | 2007-06-12 |
| Reading safety glasses App 20030142264 - Westerdal, Roland ; et al. | 2003-07-31 |
| Ear plug Grant D408,526 - Westerdal April 20, 1 | 1999-04-20 |
| Pair of ear cups Grant D385,665 - Westerdal October 28, 1 | 1997-10-28 |
| Head band hearing protector Grant D381,414 - Westerdal July 22, 1 | 1997-07-22 |
| Ear cup Grant D375,584 - Westerdal November 12, 1 | 1996-11-12 |
| Earplug and earplug set Grant 4,314,553 - Westerdal February 9, 1 | 1982-02-09 |
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