US3104701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Olin Corp
•
Filing: 1956-01-18
•
Granted: 1963-09-24
•
Expires: 1976-01-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Ben Jacoby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:22
CPC Classifications
F; F28; F28F; F28F21/00; F28F21/08; F28F21/088; F28D; F28D1/00; F28D1/02; F28D1/03; F28D1/0308; F28D1/0325; F28D1/0333; F28D1/04; F28D1/053; F28D1/05308; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/16; F28F13/00; F28F13/06; F28F13/08; F28D2001/0253; F28D2001/026; F28D2001/0273; F28F2215/00; F28F2215/10; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/471; Y10S165/485; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A HEAT EXCHANGER COMPRISING A PRESSURE WELDED SEAMLESS METAL SHEET HAVING INTERNALLY DISPOSED THEREIN A TUBULAR CONDUIT BULGED OUT OF THE PLANE OF SAID SHEET; PRESSURE WELDED PORTIONS OF SAID SHEET LATERALLY DEFINING SAID CONDUIT IN SAID SHEET AND ALSO FORMING A SEAMLESS INTEGRAL EXTENSION OF THE WALLS OF SAID CONDUIT; AND SAID TUBULAR CONDUIT IS PROVIDED WITH AT LEAST TWO INTERMEDIATE PORTIONS CONNECTED IN SERIES WITH ONE ANOTHER AND EACH PORTION NARROWED INTO A CONSTRICTION.
Claim 2
Dependent Claim
76 words
A HEAT EXCHANGER COMPRISING A PRESSURE WELDED SEAMLESS METAL SHEET HAVING INTERNALLY DISPOSED THEREIN A TUBULAR CONDUIT BULGED OUT OF THE PLANE OF SAID SHEET; PRESSURE WELDED PORTIONS OF SAID SHEET LATERALLY DEFINING SAID CONDUIT IN SAID SHEET AND ALSO FORMING A SEAMLESS INTEGRAL EXTENSION OF THE WALLS OF SAID CONDUIT; AND SAID TUBULAR CONDUIT IS PROVIDED WITH AT LEAST TWO INTERMEDIATE PORTIONS CONNECTED IN SERIES WITH ONE ANOTHER AND EACH PORTION NARROWED INTO A CONSTRICTION.
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |