Patent US2631476A successfully refreshed from Google Patents.
US2631476A
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Epicyclic change-speed gear
Assignee: Individual
•
Filing: 1950-07-22
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Granted: 1953-03-17
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Expires: 1970-07-22
Abstract
No abstract record available.
Inventors
- 👤 Ravigneaux Pol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H3/663; F16H2200/00; F16H2200/20; F16H2200/2002; F16H2200/2007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB191128034A
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US1217059A
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GB141492A
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Cited
FR809102A
Cited
FR48019E
Cited
US2123770A
Cited
US2351061A
Cited
DE720797C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |