US2583592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jointed ladder for floating roofs
Assignee: Chicago Bridge and Iron Co
•
Filing: 1947-03-26
•
Granted: 1952-01-29
•
Expires: 1967-03-26
Abstract
No abstract record available.
Inventors
- 👤 Pogue Robert Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:29
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US298212A
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US364173A
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US1067002A
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US1444119A
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US1734623A
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US1945531A
Cited
US2092877A
Cited
US2047589A
Cited
US2056857A
Cited
US2180587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |