US2445350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-effect solar still
Assignee: Individual
•
Filing: 1943-12-23
•
Granted: 1948-07-20
•
Expires: 1963-12-23
Abstract
No abstract record available.
Inventors
- 👤 Defoe C Ginnings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:54
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/36; B01D61/364; B01D61/3641; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/14; C02F1/18; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/208; Y02A20/212; Y10; Y10S; Y10S159/00; Y10S159/27; Y10S159/902; Y10S159/903; Y10S159/904; Y10S159/906; Y10S203/00; Y10S203/01; Y10S203/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US552456A
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FR681133A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |