Spears; Harry L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spears; Harry L..The latest application filed is for "standing valve with a curved fin".
- Spears; Harry L. - Spring TX
- Spears; Harry L. - Tomball TX
- Spears; Harry L. - Houston TX
| Patent | Date |
|---|---|
| Standing valve with a curved fin Grant 6,283,148 - Spears , et al. September 4, 2 | 2001-09-04 |
| Wall pump having backwash valve actuator Grant 5,382,142 - Spears January 17, 1 | 1995-01-17 |
| Travelling valve assembly for a fluid pump Grant 4,599,054 - Spears July 8, 1 | 1986-07-08 |
| Fluid pump Grant 4,531,896 - Spears July 30, 1 | 1985-07-30 |
| Slide Valve Pump Grant 3,697,199 - Spears October 10, 1 | 1972-10-10 |
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