Gardner, Jr.; Ross
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gardner, Jr.; Ross.The latest application filed is for "acoustical hearing protective devices utilizing dynamically stiff foam and methods of producing same".
- Gardner, Jr.; Ross - Indianapolis IN
- Gardner, Jr.; Ross - Stoughton MA
| Patent | Date |
|---|---|
| Acoustical hearing protective devices utilizing dynamically stiff foam and methods of producing same Grant 5,792,998 - Gardner, Jr. , et al. August 11, 1 | 1998-08-11 |
| Acoustical earmuff Grant 5,420,381 - Gardner, Jr. , et al. May 30, 1 | 1995-05-30 |
| Polymeric foam earplug Grant 5,203,352 - Gardner, Jr. April 20, 1 | 1993-04-20 |
| Hearing protective earplug having alternative modes of insertion Grant 5,188,123 - Gardner, Jr. February 23, 1 | 1993-02-23 |
| Hearing protector Grant D331,966 - Gardner, Jr. December 22, 1 | 1992-12-22 |
| Earplug or similar article Grant D307,636 - Gardner, Jr. May 1, 1 | 1990-05-01 |
| Earplug or similar article Grant D307,635 - Gardner, Jr. * May 1, 1 | 1990-05-01 |
| Earplug or similar article Grant D303,014 - Gardner, Jr. , et al. August 22, 1 | 1989-08-22 |
| Articulated earmuff-to-headband attachment construction Grant 4,471,496 - Gardner, Jr. , et al. Sept | 1984-09-18 |
| Hearing protectors Grant 4,461,290 - Gardner, Jr. , et al. July 24, 1 | 1984-07-24 |
| Earplugs Grant RE29,487 - Gardner, Jr. December 6, 1 | 1977-12-06 |
| Earplugs Grant 3,811,437 - Gardner, Jr. May 21, 1 | 1974-05-21 |
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