US3326280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger with baffle structure
Assignee: Air Liquide SA
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Filing: 1963-11-12
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Granted: 1967-06-20
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Bosquain Maurice
- 👤 Grenier Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:04
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/021; F28; F28D; F28D7/00; F28D7/16; F28D7/163; F28D7/1653; F28F; F28F13/00; F28F13/06; F28F9/00; F28F9/005; F28F9/22; Y; Y10; Y10S; Y10S159/00; Y10S159/901; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/401; Y10S165/405
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A HEAT EXCHANGER COMPRISING A LONGITUDINALLY EXTENDING HOLLOW HOUSING, FIRST AND SECOND END WALLS AT EACH END OF SAID HOUSING, A BOX EXTENDING BETWEEN SAID END WALLS, SAID BOX HAVING SPACED SIDE WALLS, A PAIR OF LIQUID SEPARATING WALLS EXTENDING FROM SAID FIRST END WALL ADJACENT THE TOP OF SAID BOX TO SAID SECOND END WALL ADJACENT THE BOTTOM OF SAID BOX TO FORM LIQUID COMPARTMENTS BELOW SAID LIQUID SEPARATING WALLS AND LIQUID COMPARTMENT ABOVE SAID WALLS, SAID LIQUID SEPARATING WALLS EXTENDING OUTWARDLY FROM SAID SPACED SIDE WALLS, SAID LIQUID COMPARTMENTS BEING IN FLOW COMMUNICATION WITH
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |