US3095698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer medium
Assignee: American Potash and Chemical Corp
•
Filing: 1957-09-18
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Granted: 1963-07-02
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Expires: 1977-09-18
Abstract
No abstract record available.
Inventors
- 👤 David R Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:55
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD OF HEAT TRANSFER COMPRISING HEATING A TERNARY MIXTURE OF SODIUM, POTASSIUM AND RUBIDIUM TO PROVIDE A STREAM OF HOT RUBIDIUM VAPOR AND A LIQUID RESIDUE LEAN IN RUBIDIUM, EXTRACTING ENREGY FROM THE RUBIDIUM VAPOR WHEREBY THE VAPOR IS COOLED, CONDENSING THE COOLED RUBIDIUM VAPOR, AND RETURNING THE CONDENSED RUBIDIUM TO SAID LIQUID RESIDUE TO PROVIDE SAID MIXTURE FOR REUSE, SAID MIXTURE HAVING A PERCENTAGE COMPOSITION
Claim 2
Independent Claim
67 words
A METHOD OF HEAT TRANSFER COMPRISING HEATING A TERNARY MIXTURE OF SODIUM, POTASSIUM AND RUBIDIUM TO PROVIDE A STREAM OF HOT RUBIDIUM VAPOR AND A LIQUID RESIDUE LEAN IN RUBIDIUM, EXTRACTING ENREGY FROM THE RUBIDIUM VAPOR WHEREBY THE VAPOR IS COOLED, CONDENSING THE COOLED RUBIDIUM VAPOR, AND RETURNING THE CONDENSED RUBIDIUM TO SAID LIQUID RESIDUE TO PROVIDE SAID MIXTURE FOR REUSE, SAID MIXTURE HAVING A PERCENTAGE COMPOSITION
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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |