Patent US2927281A successfully refreshed from Google Patents.
US2927281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-pull transistor oscillator
Assignee: Motors Liquidation Co
•
Filing: 1956-01-17
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Granted: 1960-03-01
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Expires: 1976-01-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth S Vogt
- 👤 Leslie E Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:21
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/5383; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3382; H02M3/3384
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2506158A
Cited
US2540275A
Cited
GB728024A
Cited
US2788493A
Cited
US2748274A
Cited
US2783380A
Cited
US2843744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |