Patent US2848628A successfully refreshed from Google Patents.
US2848628A
Expired / Lapsed
US
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Transistor ring counter
Assignee: Hazeltine Research Inc
•
Filing: 1954-10-06
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Granted: 1958-08-19
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Expires: 1974-10-06
Abstract
No abstract record available.
Inventors
- 👤 Ernst R Altschul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:41
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2536035A
Cited
US2655607A
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US2614141A
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US2594336A
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US2644897A
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US2703368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |