US2870327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic probability circuit
Assignee: AT&T Inc
•
Filing: 1953-03-03
•
Granted: 1959-01-20
•
Expires: 1973-03-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter H Macwilliams
- 👤 Robert C Winans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:53
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/84; G; G06; G06F; G06F17/00; G06F17/10; G06F17/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2605410A
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US2491029A
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US2744247A
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US2647206A
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US2666136A
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US2715815A
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US2738463A
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US2651753A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |