US3069864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of fresh water from sea water
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1960-10-10
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Granted: 1962-12-25
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Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:02
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/22; C02F2103/00; C02F2103/08; Y; Y02; Y02A; Y02A20/00; Y02A20/124
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A PROCESS FOR RECOVERING FRESH WATER FROM SALINE WATER COMPRISING THE STEPS OF SUBJECTING THE SLINE WATER TO A SUCCESSION OF PARTIAL FREEZING TREATMENTS IN SUCCESSIVE TANKS, SEPARATING THE LARGER ICE CRYSTALS FROM THE MOTHER LIQUOR IMMEDIATELY AFTER LEAVING THE TANK, WASHING SAID ICE CRYSTALS AND MELTING THEM FOR THE PRO-
Claim 2
Dependent Claim
51 words
A PROCESS FOR RECOVERING FRESH WATER FROM SALINE WATER COMPRISING THE STEPS OF SUBJECTING THE SLINE WATER TO A SUCCESSION OF PARTIAL FREEZING TREATMENTS IN SUCCESSIVE TANKS, SEPARATING THE LARGER ICE CRYSTALS FROM THE MOTHER LIQUOR IMMEDIATELY AFTER LEAVING THE TANK, WASHING SAID ICE CRYSTALS AND MELTING THEM FOR THE PRO-
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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |