US3415666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroless copper plating bath
Assignee: Asahi Dow Ltd
•
Filing: 1966-06-16
•
Granted: 1968-12-10
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Expires: 1986-06-16
Abstract
No abstract record available.
Inventors
- 👤 Nagai Satoshi
- 👤 Furumoto Koji
- 👤 Moriya Hisae
- 👤 Akimoto Sakae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:34
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/38; C23C18/40; C23C18/405; C23C18/18; C23C18/20; C23C18/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN ELECTROLESS COPPER PLATING BATH COMPRISING 0.000001-100000 PART BY WEIGHT OF SODIUM THIOSULFATE, 0.0000080-2.400000 PARTS BY WEIGHT OF LOWER ALCOHOL, IN 100 PARTS BY WEIGHT OF AN ELECTROLESS COPPER PLATING SOLUTION CONSISTING OF 3.5-70 PARTS BY WEIGHT OF COPPER SULFATE, 20-200 PARTS BY WEIGHT OF FORMALIN, 17-340 PARTS BY WEIGHT OF ROCHELLE SALT, 5-100 PARTS BY WEIGHT OF SODIUM HYDROXIDE, 8-160 PARTS BY WEIGHT OF SODIUM CARBONATE AND 1000 PARTS BY VOLUME OF WATER.
Claim 2
Dependent Claim
74 words
AN ELECTROLESS COPPER PLATING BATH COMPRISING 0.000001-100000 PART BY WEIGHT OF SODIUM THIOSULFATE, 0.0000080-2.400000 PARTS BY WEIGHT OF LOWER ALCOHOL, IN 100 PARTS BY WEIGHT OF AN ELECTROLESS COPPER PLATING SOLUTION CONSISTING OF 3.5-70 PARTS BY WEIGHT OF COPPER SULFATE, 20-200 PARTS BY WEIGHT OF FORMALIN, 17-340 PARTS BY WEIGHT OF ROCHELLE SALT, 5-100 PARTS BY WEIGHT OF SODIUM HYDROXIDE, 8-160 PARTS BY WEIGHT OF SODIUM CARBONATE AND 1000 PARTS BY VOLUME OF WATER.
References Cited (Backward Citations)
US3307972A
Cited
US3370974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |