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US2433731A
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US
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Process of making heat transfer units
Assignee: Young Radiator Co
•
Filing: 1945-08-20
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Granted: 1947-12-30
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Expires: 1965-08-20
Abstract
No abstract record available.
Inventors
- 👤 Howard F Brinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:50
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/001; B; B21; B21D; B21D53/00; B21D53/02; B21D53/06; F28D; F28D7/00; F28D7/16; F28F9/007; F28F9/013; F28F9/0131; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49373
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1025898A
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US1363208A
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US1856618A
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US2092170A
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US2232562A
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US2288598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |