US3256703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact liquid heat exchanger
Assignee: North American Aviation Corp
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Filing: 1965-03-22
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Granted: 1966-06-21
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Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 Selwitz Larry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:13
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/10; H10N10/13; F; F25; F25B; F25B21/00; F25B21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A COOLING SYSTEM FOR AN ELECTRONIC APPARATUS COMPRISING AN EXPANSIBLE CONTAINER MEMBER ATTACHED TO ONE SURFACE OF SAID APPARATUS, SAID MEMBER HAVING AN OUTER SURFACE DIRECTLY FACING THE ENVIRONMENT EXTERNAL OF SAID SYSTEM, A VAPORIZABLE COOLANT FLUID DISPOSED WITHIN SAID CONTAINER IN CONTACT WITH SAID SURFACE, THE VAPOR GENERATED BY BOILING OF SAID FLUID CAUSING THE EXPANSION OF SAID CONTAINER IN RESPONSE THERETO, THEREBY COOLING SAID APPARATUS.
Claim 2
Dependent Claim
67 words
A COOLING SYSTEM FOR AN ELECTRONIC APPARATUS COMPRISING AN EXPANSIBLE CONTAINER MEMBER ATTACHED TO ONE SURFACE OF SAID APPARATUS, SAID MEMBER HAVING AN OUTER SURFACE DIRECTLY FACING THE ENVIRONMENT EXTERNAL OF SAID SYSTEM, A VAPORIZABLE COOLANT FLUID DISPOSED WITHIN SAID CONTAINER IN CONTACT WITH SAID SURFACE, THE VAPOR GENERATED BY BOILING OF SAID FLUID CAUSING THE EXPANSION OF SAID CONTAINER IN RESPONSE THERETO, THEREBY COOLING SAID APPARATUS.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |