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US2513626A
Expired / Lapsed
US
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Water-cooled furnace door
Assignee: Individual
•
Filing: 1947-09-16
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Granted: 1950-07-04
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Expires: 1967-09-16
Abstract
No abstract record available.
Inventors
- 👤 Corriston John Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:46
CPC Classifications
F; F23; F23M; F23M7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US227336A
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US227536A
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US456689A
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US663464A
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US1059573A
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US1119735A
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DE492432C
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US1690619A
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US2355142A
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US2395757A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |