Patent US2537797A successfully refreshed from Google Patents.
US2537797A
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US
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Finned tube
Assignee: Modine Manufacturing Co
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Filing: 1946-08-08
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Granted: 1951-01-09
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Expires: 1966-08-08
Abstract
No abstract record available.
Inventors
- 👤 Clyde S Simpelaar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:53
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F16; F16L; F16L59/00; F16L59/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/49382
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1363416A
Cited
US1713020A
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US1853315A
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US1734136A
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US1736906A
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US1777782A
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US2149696A
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US2345331A
Cited
US2372795A
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US2386159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |