US2480385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: United States Department of the Navy
•
Filing: 1945-03-20
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Granted: 1949-08-30
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Expires: 1965-03-20
Abstract
No abstract record available.
Inventors
- 👤 Paul B Sebring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:30
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1844950A
Cited
US1969550A
Cited
US1995810A
Cited
US2106831A
Cited
US2301254A
Cited
US2300999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |