US3340186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of demineralized water from saline waters
Assignee: Research Corp
•
Filing: 1964-05-14
•
Granted: 1967-09-05
•
Expires: 1984-05-14
Abstract
No abstract record available.
Inventors
- 👤 Peter K Weyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:36
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/14; C02F1/44; B; B01; B01D; B01D2319/00; B01D2319/02; B01D2319/022; C02F2103/00; C02F2103/08; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y02A20/131; Y02A20/138; Y02A20/142; Y02A20/20; Y02A20/208; Y02A20/212; Y02W; Y02W10/00; Y02W10/30; Y02W10/37; Y10; Y10S; Y10S159/00; Y10S159/27; Y10S203/00; Y10S203/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A METHOD FOR THE RECOVERY OF DEMINERALIZED WATER FROM SALINE WATERS WHICH COMPRISES PROVIDING A WARMER BODY OF SALINE WATER AND A COOLER BODY OF DEMINERALIZED WATER SEPARATED BY AN AIR-FILLED, POROUS HYDROPHOBIC MEMBRANE THEREBY CAUSING WATER TO PASS FROM THE WARMER BODY OF SALINE WATER TO THE COOLER BODY OF DEMINERALIZED WATER.
Claim 2
Independent Claim
53 words
A METHOD FOR THE RECOVERY OF DEMINERALIZED WATER FROM SALINE WATERS WHICH COMPRISES PROVIDING A WARMER BODY OF SALINE WATER AND A COOLER BODY OF DEMINERALIZED WATER SEPARATED BY AN AIR-FILLED, POROUS HYDROPHOBIC MEMBRANE THEREBY CAUSING WATER TO PASS FROM THE WARMER BODY OF SALINE WATER TO THE COOLER BODY OF DEMINERALIZED WATER.
References Cited (Backward Citations)
US3129145A
Cited
US3129146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |