US3223153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fin and tube type heat exchanger
Assignee: Modine Manufacturing Co
•
Filing: 1962-05-21
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Granted: 1965-12-14
•
Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 Clyde S Simpelaar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:27
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/08; B21D53/085; F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/32; F28F1/325; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/50; Y10S165/501; Y10S165/502; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378; Y10T29/4938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A FIN AND TUBE HEAT EXCHANGER, COMPRISING: A SINUOUS CONTINUOUS METAL SHEET ARRANGED IN ADJACENT PLEATES CONSTITUTING FINS CONNECTED IN SERIES BY SIDE FOLD AREA, SAID SHEET HAVING MEANS FORMING ELONGATED OPENINGS SUBSTANTIALLY ALONG SAID FOLD AREAS FOR PERMITTING HIGH VOLUME FLOW OF FLUID THROUGH SAID OPENINGS AND BETWEEN SAID
Claim 2
Dependent Claim
50 words
A FIN AND TUBE HEAT EXCHANGER, COMPRISING: A SINUOUS CONTINUOUS METAL SHEET ARRANGED IN ADJACENT PLEATES CONSTITUTING FINS CONNECTED IN SERIES BY SIDE FOLD AREA, SAID SHEET HAVING MEANS FORMING ELONGATED OPENINGS SUBSTANTIALLY ALONG SAID FOLD AREAS FOR PERMITTING HIGH VOLUME FLOW OF FLUID THROUGH SAID OPENINGS AND BETWEEN SAID
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US2948054A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |