US3444471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diversity receiving system with a voltage controlled oscillator coupled to a crystal controlled oscillator in at least one channel
Assignee: TDK Micronas GmbH
•
Filing: 1966-04-28
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Granted: 1969-05-13
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Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 Heyward A French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:20
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0837; H04B7/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2249425A
Cited
US3195049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |