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US2931760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid copper plating
Assignee: Individual
•
Filing: 1957-09-25
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Granted: 1960-04-05
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Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 Leon R Westbrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:28
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN AQUEOUS ACID COPPER ELECTROPLATING BATH CONTAINING A BATH-SOLUBLE POLYOXYETHANOL HAVING MOLECULAR WEIGHT GREATER THAN 300, AND A BATH COMPATIBLE COMPOUND PROVIDING CONCENTRATION IN THE BATH OF BETWEEN 0.00055 AND ABOUT 0.28 GRAM MOLS PER LITER OF AN ION SELECTED FROM THE GROUP CONSISTING OF CHLORIDE ION AND BROMIDE ION, SAID POLYOXYETHANOL BEING IN SOLUTION IN THE BATH IN AMOUNT EFFECTIVE TO ACT SYNERGISTICALLY WITH THE SAID ION IN THE BATH TO PRODUCE UNIFORM COPPER DEPOSITS OF SUPERIOR PHYSICAL PROPERTIES.
Claim 2
Dependent Claim
80 words
AN AQUEOUS ACID COPPER ELECTROPLATING BATH CONTAINING A BATH-SOLUBLE POLYOXYETHANOL HAVING MOLECULAR WEIGHT GREATER THAN 300, AND A BATH COMPATIBLE COMPOUND PROVIDING CONCENTRATION IN THE BATH OF BETWEEN 0.00055 AND ABOUT 0.28 GRAM MOLS PER LITER OF AN ION SELECTED FROM THE GROUP CONSISTING OF CHLORIDE ION AND BROMIDE ION, SAID POLYOXYETHANOL BEING IN SOLUTION IN THE BATH IN AMOUNT EFFECTIVE TO ACT SYNERGISTICALLY WITH THE SAID ION IN THE BATH TO PRODUCE UNIFORM COPPER DEPOSITS OF SUPERIOR PHYSICAL PROPERTIES.
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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |