Patent US3453834A successfully refreshed from Google Patents.
US3453834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for supply replenishment of an underwater habitat
Assignee: United States Department of the Navy
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Filing: 1968-01-10
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Granted: 1969-07-08
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Expires: 1988-01-10
Abstract
No abstract record available.
Inventors
- 👤 Lawrence S Jue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:15
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/34; B63C11/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |