Estkowski; Michael H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Estkowski; Michael H..The latest application filed is for "twin wheel caster and brake assembly".
- Estkowski; Michael H. - St. Joseph MI
- Estkowski; Michael H. - Coloma MI
| Patent | Date |
|---|---|
| Twin wheel caster and brake assembly Grant 5,415,252 - Estkowski May 16, 1 | 1995-05-16 |
| Vertical back adjust for chairs Grant 5,232,265 - Estkowski , et al. August 3, 1 | 1993-08-03 |
| Caster bearing assembly Grant 5,230,571 - Estkowski , et al. July 27, 1 | 1993-07-27 |
| Integral retainer and bearing assembly Grant 5,226,739 - Estkowski , et al. July 13, 1 | 1993-07-13 |
| Dual wheel tilted axle caster with an integral retainer and bearing assembly Grant 5,068,943 - Estkowski , et al. December 3, 1 | 1991-12-03 |
| Chair seat tilt control Grant 4,892,354 - Estkowski , et al. January 9, 1 | 1990-01-09 |
| Chair seat tilt control Grant 4,718,726 - Estkowski , et al. January 12, 1 | 1988-01-12 |
| Seed marker tabs Grant 4,353,183 - Estkowski October 12, 1 | 1982-10-12 |
| Engine starting system Grant 4,144,862 - Estkowski March 20, 1 | 1979-03-20 |
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