US2944160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillatory motor-generator
Assignee: Individual
•
Filing: 1958-05-16
•
Granted: 1960-07-05
•
Expires: 1978-05-16
Abstract
No abstract record available.
Inventors
- 👤 Charles B Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:19
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02K; H02K47/00; H02K47/02; H02K47/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1544010A
Cited
US2297251A
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 |