US2916637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multivibrator circuits with improved power-frequency capacity
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1955-08-09
•
Granted: 1959-12-08
•
Expires: 1975-08-09
Abstract
No abstract record available.
Inventors
- 👤 Cravens L Wanlass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:33
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/01; H03K3/012
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2502687A
Cited
US2441006A
Cited
US2540539A
Cited
US2506439A
Cited
US2545924A
Cited
US2681996A
Cited
US2622212A
Cited
US2673936A
Cited
US2655609A
Cited
US2820155A
Cited
US2840728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |