US3501381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar still with floating slab-supporting particulate radiant energy receptor
Assignee: WILLIAM R P DELANO
•
Filing: 1967-01-18
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Granted: 1970-03-17
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Expires: 1987-01-18
Abstract
No abstract record available.
Inventors
- 👤 William R P Delano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:51
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/0005; B01D5/00; B01D5/0057; B01D5/006; B01D5/0066; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/14; F; F24; F24S; F24S20/00; F24S20/70; 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; Y10; Y10S; Y10S159/00; Y10S159/902; Y10S159/903; Y10S159/904; Y10S203/00; Y10S203/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1812516A
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US2412466A
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US3314862A
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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) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |