US3219558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bright silver plating bath and process
Assignee: Sel Rex Corp
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Filing: 1962-03-22
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Granted: 1965-11-23
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Expires: 1982-03-22
Abstract
No abstract record available.
Inventors
- 👤 Foulke Donald Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:39
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AN AQUEOUS BATH FOR THE DEPOSITION OF SILVER CONSISTING ESSENTIALLY OF FROM ABOUT 7.5 G/L. TO ABOUT 112 G./L. OF A SOLUBLE SILVER CYANIDE, FROM ABOUT 25 G./L. TO 450 G./L. OF A SOLUBLE CYANIDE, FROM ABOUT .006 TO ABOUT 38 G./L. OF A SOLUBLE SALT OF METHYLENE BIS MAPHTHALENE SULFONIC ACID AND FROM ABOUT 0.25 G./L. TO ABOUT 12 G./L. OF ANTIMONY ADDED AS A COMPOUND SOLUBLE IN THE BATH.
Claim 2
Dependent Claim
71 words
AN AQUEOUS BATH FOR THE DEPOSITION OF SILVER CONSISTING ESSENTIALLY OF FROM ABOUT 7.5 G/L. TO ABOUT 112 G./L. OF A SOLUBLE SILVER CYANIDE, FROM ABOUT 25 G./L. TO 450 G./L. OF A SOLUBLE CYANIDE, FROM ABOUT .006 TO ABOUT 38 G./L. OF A SOLUBLE SALT OF METHYLENE BIS MAPHTHALENE SULFONIC ACID AND FROM ABOUT 0.25 G./L. TO ABOUT 12 G./L. OF ANTIMONY ADDED AS A COMPOUND SOLUBLE IN 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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |