US2834726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytically dissolving iron
Assignee: Manganese Chemicals Corp
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Filing: 1955-06-08
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Granted: 1958-05-13
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Expires: 1975-06-08
Abstract
No abstract record available.
Inventors
- 👤 Jay Y Welsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:08
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
PROCESS OF PRODUCING AN AQUEOUS SOLUTION OF AN AMMINO COMPLEX OF IRON WHICH COMPRISES ANODICALLY DISSOLVING IRON METAL IN AN ELECTROLYTE CONSISTING ESSENTIALLY OF A STRONGLY AMMONIACAL AQUEOUS SOLUTION OF AMMONIUM CARBAMATE BY PASSING UNDIRECTIONAL DIRECT CURRENT THERETHROUGH FROM A FERROUS METAL ANODE TO A CATHODE AND AONTINUING THE PASSAGE OF DIRECT CURRENT UNTIL A PREDETERMINED DISSOLVED IRON CONCENTRATION HAS BEEN ATTAINED.
Claim 2
Dependent Claim
62 words
PROCESS OF PRODUCING AN AQUEOUS SOLUTION OF AN AMMINO COMPLEX OF IRON WHICH COMPRISES ANODICALLY DISSOLVING IRON METAL IN AN ELECTROLYTE CONSISTING ESSENTIALLY OF A STRONGLY AMMONIACAL AQUEOUS SOLUTION OF AMMONIUM CARBAMATE BY PASSING UNDIRECTIONAL DIRECT CURRENT THERETHROUGH FROM A FERROUS METAL ANODE TO A CATHODE AND AONTINUING THE PASSAGE OF DIRECT CURRENT UNTIL A PREDETERMINED DISSOLVED IRON CONCENTRATION HAS BEEN ATTAINED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |