US3174301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger structure
Assignee: General Electric Co
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Filing: 1963-10-07
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Granted: 1965-03-23
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Thornton
- 👤 Roy W Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:41
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02; F28; F28F; F28F21/00; F28F21/06; F28F21/067; F28F9/00; F28F9/007; F28F9/013; F28F9/26; Y; Y10; Y10S; Y10S165/00; Y10S165/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AN EVAPORATOR STRUCTURE COMPRISING A SERPENTINE CONDUIT INCLUDING A PLURALITY OF SPACED PASSES SERIES CONNECTED BY END TURNS OF THE OPPOSITE ENDS OF SAID STRUCTURE AND BODIES OF RIGID FOAMED PLASTIC ENCAPSULATING AND SUPPORTING THE END TURNS AT EACH END OF SAID STRUCTURE, SAID BODIES OF FOAM PLSTIC FORMING THE SOLE MEANS FOR SUPPORTING AND HOLDING SAID PASSES IN SPACED RELATION.
Claim 2
Dependent Claim
61 words
AN EVAPORATOR STRUCTURE COMPRISING A SERPENTINE CONDUIT INCLUDING A PLURALITY OF SPACED PASSES SERIES CONNECTED BY END TURNS OF THE OPPOSITE ENDS OF SAID STRUCTURE AND BODIES OF RIGID FOAMED PLASTIC ENCAPSULATING AND SUPPORTING THE END TURNS AT EACH END OF SAID STRUCTURE, SAID BODIES OF FOAM PLSTIC FORMING THE SOLE MEANS FOR SUPPORTING AND HOLDING SAID PASSES IN SPACED RELATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |