US2400459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for concentrating and dehydrating liquid products
Assignee: Drying & Concentrating Co
•
Filing: 1942-07-29
•
Granted: 1946-05-14
•
Expires: 1962-07-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:36
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/16; B01D1/18; A; A23; A23B; A23B2/00; A23B2/90
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1949-05-13 | 1949-11-12 | 1950-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-05-13 | 1953-11-12 | 1954-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-05-13 | 1957-11-12 | 1958-05-14 | $7700.00 | Window Closed / Lapsed |