US3058832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solution treatment
Assignee: Dow Chemical Co
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Filing: 1960-09-12
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Granted: 1962-10-16
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Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 David N Glew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:25
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/22; A; A23; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/12; B; B01; B01D; B01D1/00; C01; C01B; C01B11/00; C01B11/12; C01B11/14; C01B11/145; C01B11/16; C01B11/18; C01B7/00; C01B7/01; C01D; C01D15/00; C01D3/00; C01D3/04; C01D3/10; C01D5/00; C01D7/00; C02F1/26; C02F1/265; C02F2103/00; C02F2103/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR CONCENTRATING AQUEOUS SOLUTION AND RECOVERING WATER THEREFROM WHICH COMPRISES; (2) CON TACTING A DILUTE AQUEOUS SOLUTION WITH A HYDRATE FORMING MATERIAL IN A REACTOR SYSTEM, SAID HYDRATE FORMING MATERIAL BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDRATE FORMING GASES AND HYDRATE FORMING LIQUIDS, SAID CONTACTING BEING CARRIED OUT AT A PRESELECTED TEMPERATURE TO AND HYDRATE FORMER PRESSURE WHICH IS NOT LESS THE P1 IN ACCORDANCE WITH THE FORMULA,
Claim 2
Dependent Claim
73 words
A PROCESS FOR CONCENTRATING AQUEOUS SOLUTION AND RECOVERING WATER THEREFROM WHICH COMPRISES; (2) CON TACTING A DILUTE AQUEOUS SOLUTION WITH A HYDRATE FORMING MATERIAL IN A REACTOR SYSTEM, SAID HYDRATE FORMING MATERIAL BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDRATE FORMING GASES AND HYDRATE FORMING LIQUIDS, SAID CONTACTING BEING CARRIED OUT AT A PRESELECTED TEMPERATURE TO AND HYDRATE FORMER PRESSURE WHICH IS NOT LESS THE P1 IN ACCORDANCE WITH THE FORMULA,
References Cited (Backward Citations)
US2904511A
Cited
US2974102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |