Patent US2849352A successfully refreshed from Google Patents.
US2849352A
Expired / Lapsed
US
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Electroplating process
Assignee: Dehydag Deutsche Hydrierwerke GmbH
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Filing: 1956-10-25
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Granted: 1958-08-26
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Expires: 1976-10-25
Abstract
No abstract record available.
Inventors
- 👤 Kirstahler Alfred
- 👤 Strauss Wennemar
- 👤 Willmund Wolf-Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:41
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
AN ELECTROPLATING BATH FOR PRODUCING BRIGHT ELECTRODEPOSITS OF METALS SELECTED FROM THE GROUP CONSISTING OF COPPER, ZINC, CADMIUM, NICKEL, SILVER, BRONZE AND BRASS, COMPRISING AN AQUEOUS SOLUTION OF AN INORGANIC SALT OF THE METAL TO BE ELECTRODEPOSITED AND, AS A BRIGHTENER, AN ORGANIC SULFONIC ACID COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
50 words
AN ELECTROPLATING BATH FOR PRODUCING BRIGHT ELECTRODEPOSITS OF METALS SELECTED FROM THE GROUP CONSISTING OF COPPER, ZINC, CADMIUM, NICKEL, SILVER, BRONZE AND BRASS, COMPRISING AN AQUEOUS SOLUTION OF AN INORGANIC SALT OF THE METAL TO BE ELECTRODEPOSITED AND, AS A BRIGHTENER, AN ORGANIC SULFONIC ACID COMPOUND HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2647866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |