Patent US2590133A successfully refreshed from Google Patents.
US2590133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stoking apparatus fuel storage bin and conveyer
Assignee: Beazer East Inc
•
Filing: 1945-08-01
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Granted: 1952-03-25
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Expires: 1965-08-01
Abstract
No abstract record available.
Inventors
- 👤 Chester E Shaffer
- 👤 Jr Albert Boyd Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:12
CPC Classifications
F; F23; F23K; F23K3/00; F23K3/10; F23K3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1423986A
Cited
US1597921A
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US1633465A
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US1667230A
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US1970858A
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US2034980A
Cited
US2031369A
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US2191219A
Cited
US2333338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |