US2970309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog-to-digital converters
Assignee: Individual
•
Filing: 1957-09-25
•
Granted: 1961-01-31
•
Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 William B Towles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:26
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/28; H; H03; H03M; H03M1/00; H03M1/12; H03M1/34; H03M1/38; H03M1/44; H03M1/447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2637763A
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US2611807A
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US2836356A
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US2796314A
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US2817481A
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US2816237A
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US2837662A
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US2824698A
Cited
US2791764A
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US2828482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |