US2882209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of copper from an acid bath
Assignee: Udylite Research Corp
•
Filing: 1957-05-20
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Granted: 1959-04-14
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Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Brown Henry
- 👤 Richard A Fellows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:15
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A BATH FOR THE ELECTRODEPOSITION OF COPPER COMPRISING AN AQUEOUS ACIDIC SOLUTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF COPPER SULFATE AND COPPER NITRATE, ABOUT 0.002 GRAM/LITER TO ABOUT 0.03 GRAM/LITER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THIOHYDANTOIN, 1-ACETYL-2-THIOHYDANTOIN, 1-PROPIONYL-2-THIOHYDANTOIN AND 1-TRIFLUORO ACETYL 2-THIOHYDANTOIN, AND 0.0015 TO 0.05 GRAM/LITER OF A COMPOUND HAVING GTHE STRUCTURE: WHEREIN R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, METHYL AND ETHYL RADICALS, X IS AN ANION SELECTED FORM THE GROUP CONSISTING OF CHLORIDE, BROMIDE, IODIDE, FLUORIDE, SULFATE, BISULFATE AND NITRATE, Y IS A RADICL SELECTED FROM THE GROUP CONSISTING OF H, -NH2, -N(CH3)2 AND -N$N-Z, AND Z IS AN AROMATIC RADICAL SELECTED FORM THE GROUP CONSISTING OF PHENYL, NAPHTHYL, AND PHENYL AND NAPHTHYL RADICALS SUBSTITIUTED WITH AMINO, ALKYL SUBSTITUTED AMINO, HYDROXY AND ALKOXY SUBSTITUENT GROUPS.
Claim 2
Dependent Claim
139 words
A BATH FOR THE ELECTRODEPOSITION OF COPPER COMPRISING AN AQUEOUS ACIDIC SOLUTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF COPPER SULFATE AND COPPER NITRATE, ABOUT 0.002 GRAM/LITER TO ABOUT 0.03 GRAM/LITER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THIOHYDANTOIN, 1-ACETYL-2-THIOHYDANTOIN, 1-PROPIONYL-2-THIOHYDANTOIN AND 1-TRIFLUORO ACETYL 2-THIOHYDANTOIN, AND 0.0015 TO 0.05 GRAM/LITER OF A COMPOUND HAVING GTHE STRUCTURE: WHEREIN R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, METHYL AND ETHYL RADICALS, X IS AN ANION SELECTED FORM THE GROUP CONSISTING OF CHLORIDE, BROMIDE, IODIDE, FLUORIDE, SULFATE, BISULFATE AND NITRATE, Y IS A RADICL SELECTED FROM THE GROUP CONSISTING OF H, -NH2, -N(CH3)2 AND -N$N-Z, AND Z IS AN AROMATIC RADICAL SELECTED FORM THE GROUP CONSISTING OF PHENYL, NAPHTHYL, AND PHENYL AND NAPHTHYL RADICALS SUBSTITIUTED WITH AMINO, ALKYL SUBSTITUTED AMINO, HYDROXY AND ALKOXY SUBSTITUENT GROUPS.
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) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |