US2561344A
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US
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Variable displacement drive
Assignee: United Shoe Machinery Corp
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Filing: 1948-12-17
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Granted: 1951-07-24
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Expires: 1968-12-17
Abstract
No abstract record available.
Inventors
- 👤 Wallace M Cutler
- 👤 Henry B Greenough
- 👤 Edwin S Kant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:26
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/22; F16C3/28; A; A43; A43D; A43D79/00; B; B06; B06B; B06B3/00; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/211; Y10T74/2111; Y10T74/2112; Y10T74/2173; Y10T74/2183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |