US2938178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic control of r. f. energy transmission and reception
Assignee: Individual
•
Filing: 1956-05-08
•
Granted: 1960-05-24
•
Expires: 1976-05-08
Abstract
No abstract record available.
Inventors
- 👤 Babakian Jacob
- 👤 Jerome H Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:27
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2262020A
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US2611079A
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US2410656A
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US2425328A
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US2522861A
Cited
US2496865A
Cited
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Cited
US2832004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |