US3510689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable flip-flop circuit with memory
Assignee: Massachusetts Institute of Technology
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Filing: 1966-11-01
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Granted: 1970-05-05
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Expires: 1986-11-01
Abstract
No abstract record available.
Inventors
- 👤 Richard H Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:06
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/01; H03K3/013; G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/402; G11C11/4023; G11C11/403; G11C11/404; G11C11/4063; G11C11/407; G11C11/409; G11C11/4091; G11C19/00; G11C19/18; G11C19/182; G11C19/184; G11C19/28; H03K23/00; H03K23/40; H03K23/50; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |