Patent US2609074A successfully refreshed from Google Patents.
US2609074A
Expired / Lapsed
US
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Throttle and speed controls for motors
Assignee: Individual
•
Filing: 1948-06-19
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Granted: 1952-09-02
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Expires: 1968-06-19
Abstract
No abstract record available.
Inventors
- 👤 George T Leihgeber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:37
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0261; F02D2700/0264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1897358A
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US2116556A
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US2216138A
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US2230742A
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US2100225A
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US2204265A
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US2302085A
Cited
US2362655A
Cited
US2443084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |