Patent US2915675A successfully refreshed from Google Patents.
US2915675A
Expired / Lapsed
US
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Tunable magnetron
Assignee: RCA Corp
•
Filing: 1956-03-15
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Granted: 1959-12-01
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Expires: 1976-03-15
Abstract
No abstract record available.
Inventors
- 👤 Frank E Vaccaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:32
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/18; H01J23/20; H01J23/213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2415253A
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US2418469A
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US2445282A
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US2493091A
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US2679615A
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US2533741A
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US2794175A
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US2759122A
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US2801367A
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US2801368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |