US1638435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-tight arrangement for cannon mounted in fluid-tight turrets upon submarine vessels
Assignee: Schneider Electric SE
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Filing: 1926-07-14
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Granted: 1927-08-09
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Expires: 1946-07-14
Abstract
No abstract record available.
Inventors
- 👤 Courseulles Robert De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:38
CPC Classifications
B; B63; B63G; B63G8/00; B63G8/28; B63G8/30; F; F41; F41A; F41A27/00; F41A27/06; F41A27/08; F41A27/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-08-08 | 1931-02-07 | 1931-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-08-08 | 1935-02-07 | 1935-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-08-08 | 1939-02-07 | 1939-08-09 | $7700.00 | Window Closed / Lapsed |