Patent US3433044A successfully refreshed from Google Patents.
US3433044A
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US
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Method for forming heat exchange element
Assignee: Ford Motor Co
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Filing: 1965-12-30
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Granted: 1969-03-18
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Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Rhodes
- 👤 Alvin M Kurz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:26
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/126; F28F1/128; B; B21; B21D; B21D53/00; B21D53/02; B21D53/022; B21D53/025; B21D53/04; B21D53/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22956E
Cited
US2443377A
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US2596997A
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US2583682A
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US3135311A
Cited
US3191418A
Cited
US3203079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |