Patent US3097064A successfully refreshed from Google Patents.
US3097064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of values from pickling liquor
Assignee: Individual
•
Filing: 1961-03-13
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Granted: 1963-07-09
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Caldwell Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:26
CPC Classifications
C; C01; C01D; C01D9/00; C01D9/08; C01D9/10; C01B; C01B33/00; C01B33/08; C01B33/10; C01B33/103; Y; Y10; Y10S; Y10S423/00; Y10S423/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF TREATING ACIDIC AQUEOUS PICKING LIQUOR CONTAINING FLUORINE, CHROMIUM, IRON, NICKEL AND NITRATE VALUE THEREIN; SAID METHOD COMPRISING REACTING SAID LIQUOR WITH A SOLUBLE NITRATE SALT CAPABLE OF FORMING AN INSOLUBLE FLUORINE COMPOUND; REMOVING SAID FLUORIDE COMPOUND; AMMONIATING THE REMAINING LIQUOR TO FORM A CHROMIUM AND IRON HYDROXIDE PRECIPITATE; REMOVING SAID PRECIPITATE REACTING THE REMAINING LIQUOR WITH A SOLUBLE AGENT CAPABE OF FORMING AN INSOLUBLE NICKEL COMPOUND; REMOVING THE
Claim 2
Independent Claim
71 words
THE METHOD OF TREATING ACIDIC AQUEOUS PICKING LIQUOR CONTAINING FLUORINE, CHROMIUM, IRON, NICKEL AND NITRATE VALUE THEREIN; SAID METHOD COMPRISING REACTING SAID LIQUOR WITH A SOLUBLE NITRATE SALT CAPABLE OF FORMING AN INSOLUBLE FLUORINE COMPOUND; REMOVING SAID FLUORIDE COMPOUND; AMMONIATING THE REMAINING LIQUOR TO FORM A CHROMIUM AND IRON HYDROXIDE PRECIPITATE; REMOVING SAID PRECIPITATE REACTING THE REMAINING LIQUOR WITH A SOLUBLE AGENT CAPABE OF FORMING AN INSOLUBLE NICKEL COMPOUND; REMOVING THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |