US2595544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydration of organic fluids
Assignee: EIDP Inc
•
Filing: 1946-06-18
•
Granted: 1952-05-06
•
Expires: 1966-06-18
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Rodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:50
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; B01D11/00; B01D11/04; B01D11/0488; B01D11/0492
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
THE PROCESS OF DEHYDRATING AN ORGANIC LIQUID CONTAMINATED WITH WATER, WHICH COMPRISES DISPERSING THE LIQUID INTO THE BOTTOM OF A COLUMN OF AN AQUEOUS SOLUTION OF WATER-SOLUBLE DEHYDRATING SALT, THE CONCENTRATION OF THE SOLUTION BEING RELATIVELY DILUTE AT THE BOTTOM AND RELATIVELY CONCENTRATED AT THE TOP, SAID ORGANIC LIQUID HAVING A SPECIFIC GRAVITY LESS THAN THAT OF THE SAID DILUTE SALT SOLUTION, REMOVING A PORTION OF THE WATER CONTAINED IN THE ORGANIC LIQUID BY ALLOWING IT TO RISE THROUGH THE COLUMN OF THE SALT SOLUTION, SUBSEQUENTLY REMOVING MORE WATER FORM THE PARTIALLY DEHYDRATED LIQUID BY PASSING IT UPWARDLY THROUGH A SECOND COLUMN CONTAINING PARTICULATE SOLID DEHYDRATING SALT WHEREBY A CONCENTRATED AQUEOUS SOLUTION OF THE SALT IS FORMED, CAUSING THE SAID CONCENTRATED SALT
Claim 2
Dependent Claim
122 words
THE PROCESS OF DEHYDRATING AN ORGANIC LIQUID CONTAMINATED WITH WATER, WHICH COMPRISES DISPERSING THE LIQUID INTO THE BOTTOM OF A COLUMN OF AN AQUEOUS SOLUTION OF WATER-SOLUBLE DEHYDRATING SALT, THE CONCENTRATION OF THE SOLUTION BEING RELATIVELY DILUTE AT THE BOTTOM AND RELATIVELY CONCENTRATED AT THE TOP, SAID ORGANIC LIQUID HAVING A SPECIFIC GRAVITY LESS THAN THAT OF THE SAID DILUTE SALT SOLUTION, REMOVING A PORTION OF THE WATER CONTAINED IN THE ORGANIC LIQUID BY ALLOWING IT TO RISE THROUGH THE COLUMN OF THE SALT SOLUTION, SUBSEQUENTLY REMOVING MORE WATER FORM THE PARTIALLY DEHYDRATED LIQUID BY PASSING IT UPWARDLY THROUGH A SECOND COLUMN CONTAINING PARTICULATE SOLID DEHYDRATING SALT WHEREBY A CONCENTRATED AQUEOUS SOLUTION OF THE SALT IS FORMED, CAUSING THE SAID CONCENTRATED SALT
References Cited (Backward Citations)
USRE15783E
Cited
GB189923073A
Cited
US1367993A
Cited
US1452206A
Cited
US1988740A
Cited
US2193569A
Cited
US2276560A
Cited
US2338986A
Cited
US2193570A
Cited
US2253755A
Cited
US2322469A
Cited
US2327779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |