US2287995A
Expired / Lapsed
US
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Apparatus and method for condensing liquids
Assignee: VERNON C USHER
•
Filing: 1939-12-16
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Granted: 1942-06-30
•
Expires: 1959-12-16
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Haugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:26
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/16; A; A23; A23C; A23C1/00; A23C1/12; Y; Y10; Y10S; Y10S159/00; Y10S159/04; Y10S159/23
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) | 1945-06-29 | 1945-12-29 | 1946-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-29 | 1949-12-29 | 1950-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-29 | 1953-12-29 | 1954-06-30 | $7700.00 | Window Closed / Lapsed |