US2790079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-channel radio equipment
Assignee: TDK Micronas GmbH
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Filing: 1955-08-18
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Granted: 1957-04-23
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Expires: 1975-08-18
Abstract
No abstract record available.
Inventors
- 👤 Sven H M Dodington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:54
CPC Classifications
H; H04; H04J; H04J1/00; H04J1/02; H04J1/06; G; G01; G01S; G01S1/00; G01S1/02; H03; H03B; H03B21/00; H03B21/01; H03B21/02; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |