US2776255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making formed, plated articles
Assignee: Rockwell Spring and Axle Co
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Filing: 1955-07-07
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Granted: 1957-01-01
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Expires: 1975-07-07
Abstract
No abstract record available.
Inventors
- 👤 Milton B Hammond
- 👤 Glade B Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:05
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/36; Y; Y10; Y10S; Y10S205/00; Y10S205/917
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
THE METHOD OF MAKING FORMED, PLATED ARTICLES, WHICH COMPRISES ELECTROPLATING A COATING OF NICKEL ON A POLISHED FLAT STEEL STRIP, ELECTROPLATING A COATING OF ZINC ON THE NICKEL COATING, APPLYING A PHOSPHATE COATING AND A DRAWING COMPOUND TO THE ZINC COATING, FORMING THE COATED STRIP INTO AN ARTICLE, SUBJECTING THE FORMED ARTICLE TO AN ANODIC ALKALINE CLEANING OPERATION TO REMOVE THE PHOSPHATE COATING AND DRAWING COMPOUND, DISSOLVING OFF IN AN ACID SOLUTION FROM THE FORMED ARTICLE THE ZINC COATING CONTAINING IMPERFECTIONS RESULTING FROM THE FORMING OPERATION, SUBJECTING THE NICKEL COATED FORMED ARTICLE TO AN ANODIC ELECTROPOLISHING OPERATION IN AN ACID AQUEOUS BATH CONTAINING PHOSPHERIC ACID TO REMOVE RESIDUE RESULTING FROM DISSOLVING OFF THE ZINC COATING, SUBJECTING THE NICKEL COATED FORMED ARTICLE TO A CATHODIC ALKALINE CLEANING OPERATION TO ACTIVATE THE NICKEL, CONTACTING THE FORMED ARTICLE WITH AN ACID, AND ELECTROPLATING A NICKEL COATING ON THE FORMED ARTICLE.
References Cited (Backward Citations)
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US1597189A
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US2206662A
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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) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |