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Patent US3388046A successfully refreshed from Google Patents.
US3388046A
Expired / Lapsed
US
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Separation of methanol, water and glycol by plural distillation utilizing heat recovery
Assignee: Atlantic Richfield Co
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Filing: 1965-02-17
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Granted: 1968-06-11
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Expires: 1985-02-17
Abstract
No abstract record available.
Inventors
- 👤 Lloyd T Hendrix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:29
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/143; B01D3/146; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2954341A
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US3073752A
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US2973628A
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US3230155A
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US3230156A
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US3294650A
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US3265590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |