Patent US2991024A successfully refreshed from Google Patents.
US2991024A
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US
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Constant torque variable speed drive
Assignee: Individual
•
Filing: 1957-09-03
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Granted: 1961-07-04
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Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Goode Robert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:02
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/472; B; B66; B66D; B66D1/00; B66D1/28; B66D1/40; B66D1/48; B66D1/60; B66D1/74; B66D1/7405; B66D1/741; B66D2700/00; B66D2700/01; B66D2700/0108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22577E
Cited
US966858A
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US980220A
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US1568395A
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US1748436A
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US1935400A
Cited
US1878078A
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US2146717A
Cited
US2516461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |