Blumcraft of Pittsburgh LP
BlumcraftActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4155540A | Suspended rail | Expired / Lapsed | 1977-11-30 | 1979-05-22 | 22 | Details |
| US3516644A | Handrail support means | Expired / Lapsed | 1969-06-23 | 1970-06-23 | 0 | Details |
| US3289381A | Handrails | Expired / Lapsed | 1964-06-26 | 1966-12-06 | 0 | Details |
| US3274744A | Mounting for handrailing | Expired / Lapsed | 1963-12-13 | 1966-09-27 | 2 | Details |
| CA734196A | Handrail structure | Expired / Lapsed | — | 1966-05-17 | 0 | Details |
| US3239196A | Handrail structure | Expired / Lapsed | 1963-12-13 | 1966-03-08 | 2 | Details |
| US3076636A | Ornamental railing structures | Expired / Lapsed | 1961-12-21 | 1963-02-05 | 2 | Details |
| US2807834A | Anchors for ornamental rails | Expired / Lapsed | 1953-08-25 | 1957-10-01 | 0 | Details |