Patent US3361580A successfully refreshed from Google Patents.
US3361580A
Expired / Lapsed
US
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Electroless copper plating
Assignee: Day Co
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Filing: 1963-06-18
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Granted: 1968-01-02
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Expires: 1983-06-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick W Schneble
- 👤 Zeblisky Rudolph John
- 👤 Mccormack John Francis
- 👤 Williamson John Duff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:15
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/38; C23C18/40; C23C18/405
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN ELECTROLESS COPPER PLATING BATH WHICH COMPRISES WATER, A WATER SOLUBLE COPPER SALT, A COMPLEXING AGENT FOR CUPRIC ION, A REDUCING AGENT, AND A SMALL EFFECTIVE AMOUNT OF A STABILIZING DIVALENT SULFUR COMPOUND, THE AMOUNT OF SAID SULFUR COMPOUND BEING INSUFFICIENT TO PREVENT COPPER FROM DEPOSITING FROM THE BATH.
Claim 2
Dependent Claim
49 words
AN ELECTROLESS COPPER PLATING BATH WHICH COMPRISES WATER, A WATER SOLUBLE COPPER SALT, A COMPLEXING AGENT FOR CUPRIC ION, A REDUCING AGENT, AND A SMALL EFFECTIVE AMOUNT OF A STABILIZING DIVALENT SULFUR COMPOUND, THE AMOUNT OF SAID SULFUR COMPOUND BEING INSUFFICIENT TO PREVENT COPPER FROM DEPOSITING FROM THE BATH.
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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |