US2941091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse selector circuits
Assignee: AT&T Inc
•
Filing: 1953-09-10
•
Granted: 1960-06-14
•
Expires: 1973-09-10
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:17
CPC Classifications
H; H03; H03K; H03K17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2677760A
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US2784310A
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US2543431A
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US2707751A
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US2546371A
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US2679040A
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US2631232A
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US2665413A
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US2824958A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |