Patent US2970895A successfully refreshed from Google Patents.
Patent US4442845A successfully refreshed from Google Patents.
Patent US3727103A successfully refreshed from Google Patents.
Patent US3770437A successfully refreshed from Google Patents.
Patent US1966059A successfully refreshed from Google Patents.
Patent US2802941A successfully refreshed from Google Patents.
US2802941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multivibrator circuit
Assignee: AT&T Inc
•
Filing: 1954-02-01
•
Granted: 1957-08-13
•
Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 John H Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:58
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H03K3/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |