US2986649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor multivibrator circuits
Assignee: AT&T Teletype Corp
•
Filing: 1955-10-25
•
Granted: 1961-05-30
•
Expires: 1975-10-25
Abstract
No abstract record available.
Inventors
- 👤 Phillip G Wray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:07
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2551103A
Cited
US2568918A
Cited
US2707752A
Cited
US2569345A
Cited
US2622212A
Cited
US2641717A
Cited
US2665845A
Cited
US2827574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |