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Patent US2591153A successfully refreshed from Google Patents.
US2591153A
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US
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Shifting bolster transfer mechanism
Assignee: Hodges Research and Development Co
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Filing: 1948-07-22
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Granted: 1952-04-01
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Expires: 1968-07-22
Abstract
No abstract record available.
Inventors
- 👤 William C Hodges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:44
CPC Classifications
B; B65; B65G; B65G63/00; B65G63/02; B65G63/022; B65G63/025; B60; B60P; B60P1/00; B60P1/64; B60P1/6409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2304116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |