US2647952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High power transmit-receive box
Assignee: United States Department of the Navy
•
Filing: 1945-08-02
•
Granted: 1953-08-04
•
Expires: 1965-08-02
Abstract
No abstract record available.
Inventors
- 👤 Louis D Smullin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:31
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/04; H01P; H01P7/00; H01P7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US410109A
Cited
US2106769A
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US2306682A
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US2406402A
Cited
US2402663A
Cited
US2415242A
Cited
US2445445A
Cited
US2466136A
Cited
US2442671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |