US2962212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: AT&T Inc
•
Filing: 1956-06-22
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Granted: 1960-11-29
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Expires: 1976-06-22
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:13
CPC Classifications
H; H03; H03K; H03K21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735005A
Cited
US2571680A
Cited
US2719228A
Cited
US2774868A
Cited
US2734684A
Cited
US2824228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |