Patent US6569489B1 successfully refreshed from Google Patents.
Patent US3394061A successfully refreshed from Google Patents.
US3394061A
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Tin recovery
Assignee: Vulcan Detinning Co
•
Filing: 1964-11-23
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Granted: 1968-07-23
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Forest Elbert Murry De
- 👤 Bradbury Walter Carling
- 👤 Royer Ted William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:52
CPC Classifications
C; C22; C22B; C22B25/00; C22B25/06; C01; C01G; C01G19/00; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR THE RECOVERY OF TIN FROM A TIN-CONTAINING SUBSTANCE WHICH COMPRISES BRINGING SAID TIN-CON TAINING SUBSTANCE INTO INTIMATE CONTACT WITH AN AQUEOUS SOLUTION OF HYDROCHLORIC ACID, THEREBY FORMING A SOLUTION OF STANNIC CHLRORIDE IN AQUEOUS HYDROCHLORIC ACID, PASSING SAID STANNIC CHLORIDE SOLUTION THROUGH A BED OF ACTIVATED CARBON, THEREBY SELECTIVELY ADSORBING SAID STANNIC CHLORIDE, ELUTING STANNIC CHLORIDE FROM SAID ACTIVATED CARBON WITH AN AQUEOUS SOLUTION OF SODIUM HYDROXIDE, THEREBY FORMING A SOLUTION OF SODIUM STANNATE IN SODIUM HYDROXIDE, AND RECOVERING TIN FROM SAID SODIUM STANNATE SOLUTION.
Claim 2
Dependent Claim
29 words
A PROCESS FOR THE RECOVERY OF METALLIC TIN FROM A TIN-CONTAINING SUBSTANCE ACCORDING TO CLAIM 4 IN WHICH METALLIC TIN IS RECOVERED FROM THE SODIUM STANATE SOLUTION BY ELECTRODEPOSITION.
References Cited (Backward Citations)
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Cited
US3109732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |