Patent US3046491A successfully refreshed from Google Patents.
US3046491A
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Frequency standard signal generator
Assignee: NORMAN IND Inc VAN
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Filing: 1957-04-02
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Granted: 1962-07-24
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Expires: 1977-04-02
Abstract
No abstract record available.
Inventors
- 👤 Samuel K Lackoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:58
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/36; H03B5/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2469811A
Cited
US2745009A
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US2777064A
Cited
US2755384A
Cited
US2894208A
Cited
US2887573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |