Patent US2691540A successfully refreshed from Google Patents.
US2691540A
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US
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Adjustable clamp for mounting elements on rotatable shafts
Assignee: Allis Chalmers Corp
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Filing: 1951-04-19
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Granted: 1954-10-12
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Expires: 1971-04-19
Abstract
No abstract record available.
Inventors
- 👤 Donald D Knott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:34
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/22; H01H1/221; H01H1/225; F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0852; F16D1/0864; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3958; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32418
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US360645A
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US403902A
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US409878A
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GB189318597A
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US959475A
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US953658A
Cited
US1568101A
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US1747320A
Cited
US1905784A
Cited
US2547932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |