US2879411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
"not and" gate circuits
Assignee: General Telephone Laboratories Inc
•
Filing: 1956-03-20
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Granted: 1959-03-24
•
Expires: 1976-03-20
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Faulkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:44
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/603; H03K19/00; H03K19/20; H03K19/21; H03K19/212
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2670445A
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US2676271A
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US2737583A
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US2760062A
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US2785305A
Cited
US2757280A
Cited
US2706811A
Cited
US2809303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |