US2760923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for reverse current protection of anodes in electropickling
Assignee: Republic Steel Corp
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Filing: 1952-08-29
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Granted: 1956-08-28
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Expires: 1972-08-29
Abstract
No abstract record available.
Inventors
- 👤 Leo H Boguski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:38
CPC Classifications
C; C25; C25F; C25F1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
PROCESS FOR ELECTROPLATING METAL ARTICLES COMPRISING THE STEPS OF: PLACING SAID ARTICLES ON AN ELECTRICALLY CONDUCTIVE RACK IN POSITIONS ADJACENT CONSUMABLE ELECTRODES SUPPORTED ON BUT ELECTICALLY INSULATED FROM SAID RACK; IMMERSING SAID RACK WITH THE CONSUMABLE ELECTRODES AND ARTICLES THEREON IN A PICKING BATH INCLUDING AN ACID EFFECTIVE TO REMOVE OXIDE FILMS FROM SAID ARTICLES, WHICH ACID NORMALLY ATTACKS SAID CONSUMABLE ELECTRODES; CONCURRENTLY WITH SAID IMMERSION CONDUCTING A DIRECT ELECTRIC CURRENT THROUGH SAID RACK, SAID ARTICLES, SAID BATH AND SAID CONSUMABLE ELECTRODES WITH SAID ARTICLES SERVING AS ANODES AND SAID ELECTRODES AS CATHODES, SAID REVERSE CURRENT BEING EFFECTIVE TO INHIBIT CORROSION OF THE ELECTRODES
Claim 2
Dependent Claim
104 words
PROCESS FOR ELECTROPLATING METAL ARTICLES COMPRISING THE STEPS OF: PLACING SAID ARTICLES ON AN ELECTRICALLY CONDUCTIVE RACK IN POSITIONS ADJACENT CONSUMABLE ELECTRODES SUPPORTED ON BUT ELECTICALLY INSULATED FROM SAID RACK; IMMERSING SAID RACK WITH THE CONSUMABLE ELECTRODES AND ARTICLES THEREON IN A PICKING BATH INCLUDING AN ACID EFFECTIVE TO REMOVE OXIDE FILMS FROM SAID ARTICLES, WHICH ACID NORMALLY ATTACKS SAID CONSUMABLE ELECTRODES; CONCURRENTLY WITH SAID IMMERSION CONDUCTING A DIRECT ELECTRIC CURRENT THROUGH SAID RACK, SAID ARTICLES, SAID BATH AND SAID CONSUMABLE ELECTRODES WITH SAID ARTICLES SERVING AS ANODES AND SAID ELECTRODES AS CATHODES, SAID REVERSE CURRENT BEING EFFECTIVE TO INHIBIT CORROSION OF THE ELECTRODES
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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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |