Patent US2754092A successfully refreshed from Google Patents.
US2754092A
Expired / Lapsed
US
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Metallic hand railing
Assignee: Individual
•
Filing: 1953-03-27
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Granted: 1956-07-10
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Expires: 1973-03-27
Abstract
No abstract record available.
Inventors
- 👤 Leroy W Cremens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:19
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1772159A
Cited
US1796175A
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US2427723A
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US2431546A
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US2590929A
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US2517959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |