Patent US4686632A successfully refreshed from Google Patents.
Patent US2055549A successfully refreshed from Google Patents.
US2055549A
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Heat exchange device
Assignee: Modine Manufacturing Co
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Filing: 1934-05-18
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Granted: 1936-09-29
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Expires: 1954-05-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Modine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:21
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/32; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/0535; F28D1/05366; F28D1/05383; F28F13/00; F28F13/06; F28F21/00; F28F21/08; F28F21/081; F28F21/085; F28D2001/0253; F28D2001/026; F28D2001/0266; F28F2210/00; F28F2210/08; F28F2215/00; F28F2215/02; F28F2250/00; F28F2250/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-09-29 | 1940-03-30 | 1940-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-29 | 1944-03-30 | 1944-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-29 | 1948-03-30 | 1948-09-29 | $7700.00 | Window Closed / Lapsed |