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US3463945A
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Piezo-electric crystal circuit arrangements
Assignee: BAE Systems Electronics Ltd
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Filing: 1967-01-23
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Granted: 1969-08-26
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Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 David John Fewings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:52
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/36; H03B5/362; H03L; H03L1/00; H03L1/02; H03L1/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3175168A
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US3289076A
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US3152295A
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US3243726A
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US3260960A
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US3181045A
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US3349348A
Cited
US3322981A
Cited
US3297961A
Cited
US3370255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |