Patent US4046351A successfully refreshed from Google Patents.
Patent US2730631A successfully refreshed from Google Patents.
US2730631A
Expired / Lapsed
US
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Current-driven motor
Assignee: Individual
•
Filing: 1953-03-30
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Granted: 1956-01-10
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Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Juliana S Dandini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:27
CPC Classifications
F; F03; F03B; F03B17/00; F03B17/06; F03B17/062; F03B17/063; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |