Patent US3352693A successfully refreshed from Google Patents.
US3352693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concentration of thixotropic compositions
Assignee: Technion Research and Development Foundation Ltd
•
Filing: 1963-10-31
•
Granted: 1967-11-14
•
Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Berk Zeki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:28
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/0094; A; A23; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/10; A23L5/00; A23L5/30; A23L5/32; B01D3/00; B01D3/006; Y; Y10; Y10S; Y10S159/00; Y10S159/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A METHOD OF CONCENTRATION OF A THIXOTROPIC SOLUTION WHICH COMPRISES THE STEPS PASSING A BODY OF THE SAID SOLUTION THROUGH A ZONE, SUBJECTING SAID SOLUTION IN SAID ZONE TO ULTRASONIC VIBRATION SUFFICIENT TO DECREASE THE VISCOSITY OF SAID BODY, PASSING SAID TREATED BODY THROUGH A HEATING ZONE TO RAISE THE TEMPERATURE THEREOF SUFFICIENTLY TO PRODUCE VAPORS, THEN PASSING SAID HEATED BODY THROUGH AN EVAPORATOR TO REMOVE SUCH VAPORS AND TO CONCENTRATE SAID SOLUTION WITHOUT SCORCHING THEREOF.
Claim 2
Independent Claim
76 words
A METHOD OF CONCENTRATION OF A THIXOTROPIC SOLUTION WHICH COMPRISES THE STEPS PASSING A BODY OF THE SAID SOLUTION THROUGH A ZONE, SUBJECTING SAID SOLUTION IN SAID ZONE TO ULTRASONIC VIBRATION SUFFICIENT TO DECREASE THE VISCOSITY OF SAID BODY, PASSING SAID TREATED BODY THROUGH A HEATING ZONE TO RAISE THE TEMPERATURE THEREOF SUFFICIENTLY TO PRODUCE VAPORS, THEN PASSING SAID HEATED BODY THROUGH AN EVAPORATOR TO REMOVE SUCH VAPORS AND TO CONCENTRATE SAID SOLUTION WITHOUT SCORCHING THEREOF.
References Cited (Backward Citations)
US2969111A
Cited
US3209812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |