US2876177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additives for nickel electroplating baths
Assignee: Dehydag Deutsche Hydrierwerke GmbH
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Filing: 1956-03-13
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Granted: 1959-03-03
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Expires: 1976-03-13
Abstract
No abstract record available.
Inventors
- 👤 Gundel Wolfgang
- 👤 Strauss Wennemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:13
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/12; C25D3/14; C25D3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
AN ACID WATTS-TYPE NICKLE ELECTROPLANTING BATH HAVING DISSOLVED THERIN A HETEROCYCLIC COMPOUND HAVING THE GENERAL STRUCTURAL FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
23 words
AN ACID WATTS-TYPE NICKLE ELECTROPLANTING BATH HAVING DISSOLVED THERIN A HETEROCYCLIC COMPOUND HAVING THE GENERAL STRUCTURAL FORMULA SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US2469727A
Cited
US2647866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |