US3093975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for sweetening saltwater by freezing
Assignee: Individual
•
Filing: 1960-02-17
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Granted: 1963-06-18
•
Expires: 1980-02-17
Abstract
No abstract record available.
Inventors
- 👤 Zarchin Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:23
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/22; C02F2103/00; C02F2103/08; Y; Y02; Y02A; Y02A20/00; Y02A20/124
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
THE PROCESS OF SWEETENING SEA WATER WHICH COMPRISES THE STEPS OF PARTIALLY FREEZING SAID SEA WATER TO OBTAIN A MIXTURE OF ICE CRYSTALS AND CONCENTRATED BRINE, DRAINING SAID MIXTURE, AND RINSING THE REMAINING ICE CRYSTAL WITH SEA WATER AT ABOUT -1*C. WHILE SAID CRYSTALS ARE SUPPORTED ON A DRAINING SURFACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |