US2424612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fin tube
Assignee: American Locomotive Co
•
Filing: 1943-12-22
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Granted: 1947-07-29
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Expires: 1963-12-22
Abstract
No abstract record available.
Inventors
- 👤 Addison Y Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:01
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/49384; Y10T29/49826; Y10T29/49833; Y10T29/49945
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE147858C
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US608775A
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AT7107B
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US935791A
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US1171899A
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US2079144A
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US2247199A
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US2274550A
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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) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |