US3219559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additive for level nickel plating
Assignee: Individual
•
Filing: 1958-04-23
•
Granted: 1965-11-23
•
Expires: 1978-04-23
Abstract
No abstract record available.
Inventors
- 👤 Barnet D Ostrow
- 👤 Fred I Nobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:06
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN AN ACID NICKEL PLATING BATH TAKEN FROM THE CLASS CONSISTING OF CHLORIDES AND SULFATES, THE IMPROVEMENT WHICH CONSISTS IN AN ADDITION AGENT COMPOSED OF A COMPOUND TAKEN FROM THE CLASS CONSISTING OF SULFONAMIDES AND SULFONIMIDES IN AMOUNTS OF FROM ABOUT .2 G./L. TO SATURATION TOGETHER WITH A SUBSTANCE TAKEN FROM THE CLASS CONSISTING OF METHYLENE-BIS-NAPHTHALENE AND METHYLENEBIS-BENZENE SULFONIC ACIDS, IN AMOUNTS OF FROM ABOUT .05 TO 50 G./L., SAID AMOUNTS BEING SUFFICIENT TO EXERT A LEVELING EFFECT ON THE DEPOSIT OF NICKEL.
Claim 2
Dependent Claim
83 words
IN AN ACID NICKEL PLATING BATH TAKEN FROM THE CLASS CONSISTING OF CHLORIDES AND SULFATES, THE IMPROVEMENT WHICH CONSISTS IN AN ADDITION AGENT COMPOSED OF A COMPOUND TAKEN FROM THE CLASS CONSISTING OF SULFONAMIDES AND SULFONIMIDES IN AMOUNTS OF FROM ABOUT .2 G./L. TO SATURATION TOGETHER WITH A SUBSTANCE TAKEN FROM THE CLASS CONSISTING OF METHYLENE-BIS-NAPHTHALENE AND METHYLENEBIS-BENZENE SULFONIC ACIDS, IN AMOUNTS OF FROM ABOUT .05 TO 50 G./L., SAID AMOUNTS BEING SUFFICIENT TO EXERT A LEVELING EFFECT ON THE DEPOSIT OF NICKEL.
References Cited (Backward Citations)
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Cited
US2662853A
Cited
US2712522A
Cited
US2782155A
Cited
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Cited
US2882208A
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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 |