Patent DE457271C successfully refreshed from Google Patents.
Patent US3022433A successfully refreshed from Google Patents.
US3022433A
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US
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Motor-flywheel unit
Assignee: Individual
•
Filing: 1956-05-03
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Granted: 1962-02-20
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Expires: 1976-05-03
Abstract
No abstract record available.
Inventors
- 👤 Ferranti Albino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/02; Y; Y02; Y02E; Y02E60/00; Y02E60/16; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2293311A
Cited
US1688825A
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US1780338A
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US1875763A
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US1936737A
Cited
FR873816A
Cited
US2422120A
Cited
US2432383A
Cited
US2510917A
Cited
US2624856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |