US2791979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater cable
Assignee: Individual
•
Filing: 1952-10-18
•
Granted: 1957-05-14
•
Expires: 1972-10-18
Abstract
No abstract record available.
Inventors
- 👤 Cornelius G Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:43
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/16; D07B1/162; B; B63; B63B; B63B21/00; B63B21/20; D07B1/20; D07B2501/00; D07B2501/20; D07B2501/2061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB275327A
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US2231869A
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US2372142A
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US2549777A
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GB556747A
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GB557442A
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US2419053A
Cited
US2419054A
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US2399656A
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US2577077A
Cited
US2561487A
Cited
US2652550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |