Patent US3007643A successfully refreshed from Google Patents.
US3007643A
Expired / Lapsed
US
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Microwave data processing circuits
Assignee: AT&T Inc
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Filing: 1956-12-31
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Granted: 1961-11-07
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 John W Tukey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:13
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/388
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2460075A
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US2694521A
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US2803401A
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US2593113A
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US2851219A
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US2762949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |