US2910413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brighteners for electroplating baths
Assignee: Dehydag Deutsche Hydrierwerke GmbH
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Filing: 1956-01-17
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Granted: 1959-10-27
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Expires: 1976-01-17
Abstract
No abstract record available.
Inventors
- 👤 Strauss Wennemar
- 👤 Wedell Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:53
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
AN ELECTOPLATING BATH FOR PRODUCING BRIGHT DEPOSITS OF METALS SELECTED FROM THE GOUP CONSISTING OF COPPER, ZINC, SILVER, NICKEL, CADMIUM, BRONZE AND BRASS COMPRISING AN AQUEOUS ACID SOLUTION OF AN INORGANIC SALT OF THE METAL TO BE DEPOSITED AND FROM ABOUT 0.01 TO ABOUT 20 GRAMS/LITER OF AN ACYCLIC ORGANIC COMPOUND HAVING THE GENERAL STRUCTURAL FORMULA
Claim 2
Dependent Claim
56 words
AN ELECTOPLATING BATH FOR PRODUCING BRIGHT DEPOSITS OF METALS SELECTED FROM THE GOUP CONSISTING OF COPPER, ZINC, SILVER, NICKEL, CADMIUM, BRONZE AND BRASS COMPRISING AN AQUEOUS ACID SOLUTION OF AN INORGANIC SALT OF THE METAL TO BE DEPOSITED AND FROM ABOUT 0.01 TO ABOUT 20 GRAMS/LITER OF AN ACYCLIC ORGANIC COMPOUND HAVING THE GENERAL STRUCTURAL FORMULA
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) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |