Stewart; Eugene H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stewart; Eugene H..The latest application filed is for "square embossed roof and rib plate".
- Stewart; Eugene H. - Pittsburgh PA
| Patent | Date |
|---|---|
| Square embossed roof and rib plate Grant 7,284,933 - Calandra, Jr. , et al. October 23, 2 | 2007-10-23 |
| Square embossed roof and rib plate App 20040018062 - Calandra, Frank JR. ; et al. | 2004-01-29 |
| Cable bolt head Grant 5,829,922 - Calandra, Jr. , et al. November 3, 1 | 1998-11-03 |
| Bearing plate Grant RE35,902 - Calandra, Jr. , et al. September 22, 1 | 1998-09-22 |
| Method and apparatus for supporting a mine roof Grant 5,302,056 - Calandra, Jr. , et al. April 12, 1 | 1994-04-12 |
| Mine roof anchor having adjustable resin retaining washer Grant 5,181,800 - Stankus , et al. * January 26, 1 | 1993-01-26 |
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