US2944166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable trigger circuit
Assignee: US Philips Corp
•
Filing: 1957-09-19
•
Granted: 1960-07-05
•
Expires: 1977-09-19
Abstract
No abstract record available.
Inventors
- 👤 Miranda Heine Andres Rodrig De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:11
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/35; H03K3/352
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2531076A
Cited
US2622212A
Cited
US2673936A
Cited
US2665845A
Cited
US2832899A
Cited
US2843761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |