Patent US2459290A successfully refreshed from Google Patents.
US2459290A
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Pulley block and bearing assembly
Assignee: Aetna Ball & Roller Bearing Co
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Filing: 1945-08-30
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Granted: 1949-01-18
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Expires: 1965-08-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Rozner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:22
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/04; B66D3/06; F; F16; F16C; F16C19/00; F16C19/49; B66D2700/00; B66D2700/02; B66D2700/026; B66D2700/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US949928A
Cited
US1668497A
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US1713586A
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US2180541A
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US2208724A
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US2274099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |