US3397117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact solar still
Assignee: National Aeronautics and Space Administration
•
Filing: 1966-06-13
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Granted: 1968-08-13
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Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 Robert W Smith
- 👤 Louis P Glekas
- 👤 John E Riley
- 👤 Robert L Swingle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/18; B; B63; B63C; B63C9/00; B63C9/06; C02F1/14; F; F24; F24S; F24S20/00; F24S20/70; B63C9/02; B63C9/04; B63C2009/042; C02F2103/00; C02F2103/08; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y02A20/138; Y02A20/142; Y02A20/20; Y02A20/208; Y02A20/212; Y02E; Y02E10/00; Y02E10/40; Y02E10/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2402737A
Cited
US2427262A
Cited
US2398292A
Cited
US2445350A
Cited
US2412466A
Cited
US2455835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |