US2954483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate circuits
Assignee: AT&T Inc
•
Filing: 1956-01-09
•
Granted: 1960-09-27
•
Expires: 1976-01-09
Abstract
No abstract record available.
Inventors
- 👤 Ulrich Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:24
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2557729A
Cited
US2693907A
Cited
US2627039A
Cited
US2712065A
Cited
US2693572A
Cited
US2831126A
Cited
US2821657A
Cited
US2776382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |