US2485919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical circuit
Assignee: United States, WAR, Secretary of
•
Filing: 1945-11-06
•
Granted: 1949-10-25
•
Expires: 1965-11-06
Abstract
No abstract record available.
Inventors
- 👤 William R Rambo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:29
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/14; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2216829A
Cited
US2144541A
Cited
US2279660A
Cited
US2235565A
Cited
US2349811A
Cited
US2323598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |