US2909900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Off-shore working assembly
Assignee: De Long Corp
•
Filing: 1954-01-06
•
Granted: 1959-10-27
•
Expires: 1974-01-06
Abstract
No abstract record available.
Inventors
- 👤 George E Suderow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:35
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/02; E02B17/021; E02B2017/0056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US103899A
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US720997A
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US2237387A
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US2308743A
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US2398351A
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GB600129A
Cited
US2525955A
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US2602636A
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US2598329A
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US2600761A
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US2658353A
Cited
US2775869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |