US2727485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submarine type sea train
Assignee: Individual
•
Filing: 1954-08-16
•
Granted: 1955-12-20
•
Expires: 1974-08-16
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Combs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:41
CPC Classifications
B; B63; B63G; B63G8/00; B63G8/08; B63H; B63H5/00; B63H5/07; B63H5/08; B63H5/10; B63H2005/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE237480C
Cited
US47419A
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US347983A
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US726796A
Cited
US1161484A
Cited
US1818138A
Cited
FR715825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |