US2586856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-deck floating roof
Assignee: Chicago Bridge and Iron Co
•
Filing: 1945-10-16
•
Granted: 1952-02-26
•
Expires: 1965-10-16
Abstract
No abstract record available.
Inventors
- 👤 Clifford M Orr
- 👤 Fred L Goldsby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:54
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34; B65D88/42; B65D88/46; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49828; Y10T29/49831
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1493091A
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US1574013A
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US1674104A
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US1748231A
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US2026762A
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US1976734A
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US2007193A
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US2184795A
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US2282772A
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US2337058A
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US2386022A
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US2460053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |