Patent US2610516A successfully refreshed from Google Patents.
US2610516A
Expired / Lapsed
US
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Spring loaded variable diameter sheave and drive
Assignee: Allis Chalmers Corp
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Filing: 1949-05-14
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Granted: 1952-09-16
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Expires: 1969-05-14
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:24
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1983132A
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US2150456A
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US2117485A
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GB462625A
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US2152207A
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US2185411A
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US2168835A
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US2289573A
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US2475954A
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US2532124A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |