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US2600401A
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Reciprocating hearth mechanism
Assignee: CARL I HAYES
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Filing: 1947-01-15
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Granted: 1952-06-17
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Expires: 1967-01-15
Abstract
No abstract record available.
Inventors
- 👤 Wesley R Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:07
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/24; F27B9/2453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1582127A
Cited
US1897350A
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US2172981A
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US2214755A
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US2378979A
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US2473193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |