Romanowski; John C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Romanowski; John C..The latest application filed is for "fire-retardant barrier structure".
- Romanowski; John C. - Londonderry NH
| Patent | Date |
|---|---|
| Fire-retardant barrier structure Grant 5,811,359 - Romanowski September 22, 1 | 1998-09-22 |
| Fire-retardant barrier structure Grant 5,344,697 - Romanowski * September 6, 1 | 1994-09-06 |
| Fire-retardant barrier structure Grant 4,975,316 - Romanowski December 4, 1 | 1990-12-04 |
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