Patent US3751507A successfully refreshed from Google Patents.
US3751507A
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US
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Adsorption process
Assignee: Rohm and Haas Co
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Filing: 1971-07-12
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Granted: 1973-08-07
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Expires: 1991-07-12
Abstract
Abstract A PROCESS FOR ADSORBING OR REMOVING COMPOUNDS, ESPECIALLY POLAR COMPOUNDS FROM NON-POLAR COMPOUNDS IS DISCLOSED. AN EXAMPLE IS THE ADSORPTION OF ALPHATIC ALCOHOLS OR PHENOLIC COMPOUNDS FROM ORGANIC SOLVENTS. THE ADSORPTION PROCESS UTILIZES CROSS-LINKED ADSORBENT RESINS CONTAINING TERTIARY AMINE OXIDE FUNCTIONALITY.
Inventors
- 👤 R Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:59
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/78; C07C45/79; B; B01; B01J; B01J41/00; B01J41/04; B01J41/07; C07C37/00; C07C37/68; C07C37/70; C07C37/82; C07C7/00; C07C7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |