US3338804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of stress-free metal deposits
Assignee: HARSHAW/FILTROL PARTNERSHIP A PARTNERSHIP OF
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Filing: 1964-09-03
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Granted: 1967-08-29
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Expires: 1984-09-03
Abstract
No abstract record available.
Inventors
- 👤 Fischer Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:12
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN ELECTROPLATING BATH FOR PRODUCING STRESS-FREE METAL ELECTRODEPOSITS OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, ZINC AND COPPER, COMPRISING AN AQUEOUS SOLUTION OF AT LEAST ONE WATER-SOLUBLE SALT OF THE METAL TO BE ELECTRODEPOSITED AND AN EFFECTIVE AMOUNT OF A STRESS-REDUCING ADDITIVE SELECTED FROM THE GROUP CONSISTING OF A-KETO CARBOXYLIC ACIDS HAVING FROM 3 TO 10 CARBON ATOMS AND THE WATER-SOLUBLE SALTS, ESTERS, AND AMIDES OF SAID ACIDS.
Claim 2
Dependent Claim
72 words
AN ELECTROPLATING BATH FOR PRODUCING STRESS-FREE METAL ELECTRODEPOSITS OF A METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, COBALT, ZINC AND COPPER, COMPRISING AN AQUEOUS SOLUTION OF AT LEAST ONE WATER-SOLUBLE SALT OF THE METAL TO BE ELECTRODEPOSITED AND AN EFFECTIVE AMOUNT OF A STRESS-REDUCING ADDITIVE SELECTED FROM THE GROUP CONSISTING OF A-KETO CARBOXYLIC ACIDS HAVING FROM 3 TO 10 CARBON ATOMS AND THE WATER-SOLUBLE SALTS, ESTERS, AND AMIDES OF SAID ACIDS.
References Cited (Backward Citations)
US2497725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |