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Patent US2622590A successfully refreshed from Google Patents.
US2622590A
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US
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Steam jacketed rendering kettle with bottom drawoff
Assignee: RAYMOND H STARR
•
Filing: 1947-08-06
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Granted: 1952-12-23
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Expires: 1967-08-06
Abstract
No abstract record available.
Inventors
- 👤 Corbet Harold Leroy
- 👤 Holland George
- 👤 Joseph M Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:06
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US287424A
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US486881A
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US534566A
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US754135A
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US798498A
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US1376852A
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US1494979A
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US1499852A
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GB449352A
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US2326420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |