US2902598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double conversion multi-band tuning unit
Assignee: RADION CORP
•
Filing: 1953-03-31
•
Granted: 1959-09-01
•
Expires: 1973-03-31
Abstract
No abstract record available.
Inventors
- 👤 Hills Elmer Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:10
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2468041A
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US2383322A
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US2534606A
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US2596117A
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US2598857A
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US2640919A
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US2653228A
Cited
US2763776A
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US2654836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |