US2589406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillation apparatus and method
Assignee: Arthur D Little Inc
•
Filing: 1946-04-12
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Granted: 1952-03-18
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Expires: 1966-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Allen Latham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:33
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/28; B01D1/284; B01D1/2846; B01D1/289; B01D1/2896; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189716035A
Cited
US760440A
Cited
US1252962A
Cited
DE346294C
Cited
US2185596A
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US2441361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |