US3229766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finned heat exchanger
Assignee: Olin Corp
•
Filing: 1963-05-22
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Granted: 1966-01-18
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Expires: 1983-05-22
Abstract
No abstract record available.
Inventors
- 👤 Norval A Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:55
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/12; F28F3/14; B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A HEAT EXCHANGE ELEMENT COMPRISING A METAL SHEET STRUCTURE HAVING EXTENDING INTERNALLY THEREIN A FLUID CONDUIT SYSTEM BOUNDED BY A WEB SECTION OF SAID SHEET AND A FIN MATRIX EXTENDING FROM SAID SHEET, SAID FIN MATRIX COMPRISING A FIN ELEMENT INTEGRAL WITH SAID WEB SECTION AND PROJECTING OUT OF AND AT AN ANGLE TO THE PLANE OF SAID SHEET FORMING A PERFORATION THROUGH SAID SHEET, SAID FIN ELEMENT HAVING A LENGTH GREATER THAN THE CORRESPONDING LENGTH OF SAID PERFORATION.
Claim 2
Dependent Claim
79 words
A HEAT EXCHANGE ELEMENT COMPRISING A METAL SHEET STRUCTURE HAVING EXTENDING INTERNALLY THEREIN A FLUID CONDUIT SYSTEM BOUNDED BY A WEB SECTION OF SAID SHEET AND A FIN MATRIX EXTENDING FROM SAID SHEET, SAID FIN MATRIX COMPRISING A FIN ELEMENT INTEGRAL WITH SAID WEB SECTION AND PROJECTING OUT OF AND AT AN ANGLE TO THE PLANE OF SAID SHEET FORMING A PERFORATION THROUGH SAID SHEET, SAID FIN ELEMENT HAVING A LENGTH GREATER THAN THE CORRESPONDING LENGTH OF SAID PERFORATION.
References Cited (Backward Citations)
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Cited
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Cited
US3104701A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |