US2810296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed drive
Assignee: Shuford Mills Inc
•
Filing: 1954-03-25
•
Granted: 1957-10-22
•
Expires: 1974-03-25
Abstract
No abstract record available.
Inventors
- 👤 John R Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:29
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/66; F16H61/662
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191012201A
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US1035860A
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US1545638A
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US2150456A
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US2308868A
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US2288114A
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US2611277A
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FR1040637A
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US2754691A
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US2714313A
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US2709374A
Cited
US2709373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |