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Patent US2956265A successfully refreshed from Google Patents.
US2956265A
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Translator
Assignee: AT&T Inc
•
Filing: 1957-03-19
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Granted: 1960-10-11
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Expires: 1977-03-19
Abstract
No abstract record available.
Inventors
- 👤 Edward E Schwenzfeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:00
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/185; G; G11; G11C; G11C11/00; G11C11/21; G11C11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2695396A
Cited
US2798667A
Cited
US2784396A
Cited
US2872661A
Cited
US2843841A
Cited
US2854590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |