US2860258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor decade counter
Assignee: AT&T Inc
•
Filing: 1954-09-17
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Granted: 1958-11-11
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Expires: 1974-09-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur D Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:57
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/40; H03K23/50; H03K23/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2538122A
Cited
US2584811A
Cited
US2655607A
Cited
US2533001A
Cited
US2773983A
Cited
US2652501A
Cited
US2772370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |