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US2906969A
Expired / Lapsed
US
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Crystal controlled oscillator
Assignee: TELE DYNAMICS Inc
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Filing: 1955-03-29
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Granted: 1959-09-29
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Expires: 1975-03-29
Abstract
No abstract record available.
Inventors
- 👤 Rosen Charles
- 👤 Charles J Weidknecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:05
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1975603A
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DE621255C
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US2298438A
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US2438392A
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US2426295A
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US2455824A
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US2703387A
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US2774943A
Cited
US2757288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |