US2992339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binary adder circuits
Assignee: AT&T Inc
•
Filing: 1956-11-27
•
Granted: 1961-07-11
•
Expires: 1976-11-27
Abstract
No abstract record available.
Inventors
- 👤 Stanley T Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:36
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/12; H03K19/20; H03K19/21
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2694521A
Cited
US2765115A
Cited
US2775714A
Cited
US2892099A
Cited
US2817757A
Cited
US2827573A
Cited
US2866103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |