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US2989937A
Expired / Lapsed
US
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Submarine vessles for the transport of goods such as petroleum
Assignee: Individual
•
Filing: 1958-11-04
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Granted: 1961-06-27
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Expires: 1978-11-04
Abstract
No abstract record available.
Inventors
- 👤 Rondot Jean Albert Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:57
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/66; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1301738A
Cited
US1651230A
Cited
GB489293A
Cited
US2727485A
Cited
US2823636A
Cited
FR1156236A
Cited
FR1159028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |