Patent US2597627A successfully refreshed from Google Patents.
US2597627A
Expired / Lapsed
US
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Controlled heat flow oven
Assignee: —
•
Filing: —
•
Granted: 1952-05-20
•
Expires: 1969-05-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:02
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/08; F24C3/085; F24C3/087; F24C15/00; F24C15/20; F24C15/2042; F24C15/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US278069A
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US1854034A
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US645093A
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US954385A
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US1199929A
Cited
US1428063A
Cited
US1637427A
Cited
US1777885A
Cited
US1940889A
Cited
US2201801A
Cited
US2431207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |