Patent US2933438A successfully refreshed from Google Patents.
US2933438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro processing and apparatus therefor
Assignee: Individual
•
Filing: 1958-12-19
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Granted: 1960-04-19
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Expires: 1978-12-19
Abstract
No abstract record available.
Inventors
- 👤 Leslie E Lancy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:31
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/06; C25D7/0614
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A METHOD OF ELECTROPLATING METAL STRIP WHICH IS BEING PROGRESSIVELY ADVANCED OUT OF A PLATING SOLUTION, UPON A CONTACT ROLL, AND THEN INTO A PLATING SOLUTION, THE STEPS OF CONDITIONING THE CONTENT OF THE SOLUTION CARRIEDOVER ON THE STRIP WHEN THE STRIP IS ADVANCED FROM THE PLATING SOLUTION TO THE CONTACT ROLL BY CHANGING THE RATIO OF CATIONS TO ANIONS IN THE CARRIED-OVER SOLUTION TO AT LEAST 1 TO 4 IN FAVOR OF THE ANIONS TO SUBSTANTIALLY INHIBIT ELECTROPLATING ACTION OF THE CARRIED-OVER SOLUTION ON THE CONTACT ROLL AND RENEW THE CONTENT OF THE PLATING SOLUTION WHEN THE STRIP IS THEN ADVANCED INTO IT AND WITHOUT ADVERSELY AFFECTING THE ELECTROPLATING ACTION OF THE PLATING SOLUTION ON THE STRIP.
Claim 2
Dependent Claim
119 words
IN A METHOD OF ELECTROPLATING METAL STRIP WHICH IS BEING PROGRESSIVELY ADVANCED OUT OF A PLATING SOLUTION, UPON A CONTACT ROLL, AND THEN INTO A PLATING SOLUTION, THE STEPS OF CONDITIONING THE CONTENT OF THE SOLUTION CARRIEDOVER ON THE STRIP WHEN THE STRIP IS ADVANCED FROM THE PLATING SOLUTION TO THE CONTACT ROLL BY CHANGING THE RATIO OF CATIONS TO ANIONS IN THE CARRIED-OVER SOLUTION TO AT LEAST 1 TO 4 IN FAVOR OF THE ANIONS TO SUBSTANTIALLY INHIBIT ELECTROPLATING ACTION OF THE CARRIED-OVER SOLUTION ON THE CONTACT ROLL AND RENEW THE CONTENT OF THE PLATING SOLUTION WHEN THE STRIP IS THEN ADVANCED INTO IT AND WITHOUT ADVERSELY AFFECTING THE ELECTROPLATING ACTION OF THE PLATING SOLUTION ON THE STRIP.
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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |