Hafner, V. Walter
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hafner, V. Walter.The latest application filed is for "extractor valve assembly".
- Hafner, V. Walter - Whittier CA
| Patent | Date |
|---|---|
| Extractor Valve Assembly App 20020070366 - Hafner, V. Walter ; et al. | 2002-06-13 |
| Extractor valve assembly Grant 6,394,411 - Hafner , et al. May 28, 2 | 2002-05-28 |
| Sprayhead with built-in soap system for multi person washfountains Grant 4,698,860 - Hafner , et al. October 13, 1 | 1987-10-13 |
| Tamper-proof lavatory and toilet unit Grant D281,714 - Morris , et al. December 10, 1 | 1985-12-10 |
| Vandal-resistant and tamper-proof plenum or vacuum chamber security air flow adjustment device Grant 4,505,189 - Morris , et al. March 19, 1 | 1985-03-19 |
| Fabricated floor drain with large stepped flange for elastomeric trowelled covering Grant 4,462,123 - Morris , et al. July 31, 1 | 1984-07-31 |
| Wall sleeve and installation jig for multiple adjacent fixture mounting Grant 4,434,516 - Morris , et al. March 6, 1 | 1984-03-06 |
| Fabricated floor drain with combination anchoring and seepage control flange Grant 4,423,527 - Morris , et al. January 3, 1 | 1984-01-03 |
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