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Patent US3548221A successfully refreshed from Google Patents.
US3548221A
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Flip-flop with simultaneously changing set and clear outputs
Assignee: Control Data Corp
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Filing: 1966-12-30
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Granted: 1970-12-15
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Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ronald G Hintz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:44
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/01; H03K3/012; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2945965A
Cited
US3178584A
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US3309529A
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US3351778A
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US3284645A
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US3339089A
Cited
US3424928A
Cited
US3403266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |