US3241329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquefied gas refrigeration system
Assignee: Cardox Corp
•
Filing: 1963-09-06
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Granted: 1966-03-22
•
Expires: 1983-09-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl F Fritch
- 👤 Henry M Tiedemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:13
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/10; F25D3/102; F25D3/105
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
101 words
REFRIGERATION APPARATUS, COMPRISING: A CONTAINER HAVING INTERNAL STRUCTURE FORMING A COMPARTMENT , SAID INTERNAL STRUCTURE HAVING GENERALLY PARALLEL PASSAGES ARRANGED INTO A NETWORK OF PASSAGES, AN ELONGATED VAPORIZER IN HEAT EXCHANGE RELATIONSHIP WITH SAID COMPARTGMENT FOR VAPORIZING COLD LIQUEFIED GAS AND FOR DISTRIBUTING RESULTANT COLD VAPOR AT SPACED APART LOCATIONS DIRECTLY TO SAID NETWORK OF PASSAGES, SAID ELONGATED VAPORIZER EXTENDING SUBSTANTIALY THE ENTIRE LENGTH OF SAID CONTAINER, IN SULATION SURROUNDING SAID INTERNAL STRUCTURE AND ITS RELATED NETWORK OF PASSAGES, AND MEANS DISPOSED REMOTELY FROM WHERE THE VAPOR ENTERS SAID NETWORK OF PASSAGES FOR VENTING VAPOR OUT OF SAID NETWORK OF PASSAGES.
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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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |