Patent US3006823A successfully refreshed from Google Patents.
US3006823A
Expired / Lapsed
US
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Plating bath and process
Assignee: EIDP Inc
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Filing: 1959-10-07
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Granted: 1961-10-31
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Expires: 1979-10-07
Abstract
No abstract record available.
Inventors
- 👤 Alden J Deyrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:34
CPC Classifications
C; C23; C23F; C23F1/00; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C25; C25D; C25D1/00; C25D1/04; C25D3/00; C25D3/02; C25D3/04; C25D3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN AQUEOUS ELECTROLYTIC PLATING BATH FOR THE PLATING OF BRIGHT CHROMIUM PLATE, SAID BATH COMPRISING PER 1000 G. OF BATH AN AMOUNT OF CHROMIUM GLYCOLATE TO PROVIDE THE BATH WITH 0.1 TO 1 GRAM-MOLE OF CHROMIC ION, 0.07 TO 3 TOTAL GRAM-MOLES OF GLYCOLIC ACID, 0.2 TO 3 GRAM-MOLES OF AN ALKALI METAL SALT OF AN ACID HAVING A DISSOCIATION CONSTANT OF AT LEAST K=10**-2, AND 0.2 TO 2 GRAM-MOLES OF BORIC ACID, SAID BATH BEING SUBSTANTIALLY FREE FROM FLUORINE, HAVING A PH OF BETWEEN 1.5 AND 3.0, AND IN WHICH THE MOLAR RATIO OF CARBOXYLIC ACID TO CHROMIUM IS BETWEEN 0.7:1 AND 3.3:1.
Claim 2
Dependent Claim
104 words
AN AQUEOUS ELECTROLYTIC PLATING BATH FOR THE PLATING OF BRIGHT CHROMIUM PLATE, SAID BATH COMPRISING PER 1000 G. OF BATH AN AMOUNT OF CHROMIUM GLYCOLATE TO PROVIDE THE BATH WITH 0.1 TO 1 GRAM-MOLE OF CHROMIC ION, 0.07 TO 3 TOTAL GRAM-MOLES OF GLYCOLIC ACID, 0.2 TO 3 GRAM-MOLES OF AN ALKALI METAL SALT OF AN ACID HAVING A DISSOCIATION CONSTANT OF AT LEAST K=10**-2, AND 0.2 TO 2 GRAM-MOLES OF BORIC ACID, SAID BATH BEING SUBSTANTIALLY FREE FROM FLUORINE, HAVING A PH OF BETWEEN 1.5 AND 3.0, AND IN WHICH THE MOLAR RATIO OF CARBOXYLIC ACID TO CHROMIUM IS BETWEEN 0.7:1 AND 3.3:1.
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) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |