US3564723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treating,particularly drying,material
Assignee: Individual
•
Filing: 1969-01-21
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Granted: 1971-02-23
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Expires: 1989-01-21
Abstract
Abstract A METHOD AND APPARATUS FOR TREATING MATERIAL COMPRISING CONTACTING THE MATERIAL WITH RECIRCULATED SUPERHEATED VAPOR. THE METHOD AND APPARATUS ARE PARTICULARLY SUITED TO DRY MATERIAL USING RECIRCULATED SUPERHEATED STEAM. DURING THE DRYING OPERATION, A PORTION OF THE SUPERHEATED VAPOR, AFTER CONTACTING THE MATERIAL, IS BLED OFF IN AN AMOUNT SUBSTANTIALLY EQUAL TO THE AMOUNT OF MOISTURE PICKED UP IN DRYING THE MATERIAL.
Inventors
- 👤 Arjun Dev Passey
- 👤 Jean Raymond Moreau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:00
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/16; B01D1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |