US2697166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-triggered blocking oscillator
Assignee: Individual
•
Filing: 1945-10-10
•
Granted: 1954-12-14
•
Expires: 1965-10-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward F Macnichol
- 👤 Arden H Fredrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:23
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2212420A
Cited
US2266154A
Cited
US2444782A
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US2564000A
Cited
US2447082A
Cited
US2506335A
Cited
US2410523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |