Patent US2637215A successfully refreshed from Google Patents.
US2637215A
Expired / Lapsed
US
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Adjustable speed transmission
Assignee: Individual
•
Filing: 1947-07-10
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Granted: 1953-05-05
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Expires: 1967-07-10
Abstract
No abstract record available.
Inventors
- 👤 John D Rieser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:32
CPC Classifications
F; F16; F16H; F16H9/00; F16H9/02; F16H9/04; F16H9/12; F16H9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191420640A
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US1236749A
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CH72542A
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US1235794A
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FR530847A
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US1993547A
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US1993131A
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US2005122A
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US2112157A
Cited
GB462625A
Cited
US2168744A
Cited
US2176870A
Cited
US2233822A
Cited
US2161894A
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US2183267A
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US2487980A
Cited
US2475954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |