US3082081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective separation of luteo cobalt from ammoniacal solutions containing divalent copper and/or divalent nickel by preferential adsorption on a chelating resin
Assignee: Dow Chemical Co
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Filing: 1960-05-19
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Granted: 1963-03-19
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Expires: 1980-05-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Howe
- 👤 Leo R Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:57
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/20; C22B3/42; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
METHOD FOR SEPARATING LUTEO COBALT FROM COPPER AND NICKEL BY CONTACTING AN AMKONIACAL SOLUTION OF LUTEO COBALT ALSO CONTAINING AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF DIVALENT COOPER AND DIVALENT NICKEL WITH A CHELATING RESIN OF THE GROUP CONSISTING OF RESINOUS POLYMERIC (VINYLBENZYLTHIO)ACETIC ACID RESINOUS POLYMERIC (CINLBENZYLTHIO)SUCCINIC ACID, CROSSLINKED WITH ABOUT
Claim 2
Dependent Claim
53 words
METHOD FOR SEPARATING LUTEO COBALT FROM COPPER AND NICKEL BY CONTACTING AN AMKONIACAL SOLUTION OF LUTEO COBALT ALSO CONTAINING AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF DIVALENT COOPER AND DIVALENT NICKEL WITH A CHELATING RESIN OF THE GROUP CONSISTING OF RESINOUS POLYMERIC (VINYLBENZYLTHIO)ACETIC ACID RESINOUS POLYMERIC (CINLBENZYLTHIO)SUCCINIC ACID, CROSSLINKED WITH ABOUT
References Cited (Backward Citations)
US2848322A
Cited
US2954276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |