US2600352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bright zinc electroplating
Assignee: EIDP Inc
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Filing: 1950-01-07
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Granted: 1952-06-10
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Expires: 1970-01-07
Abstract
No abstract record available.
Inventors
- 👤 Christian J Wernlund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:35
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22; C25D3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE PROCESS WHICH COMPRISES ELECTROPLATING ZINC FROM AN AQUEOUS ZINC CYANIDE SOLUTION WHICH COMTAINS ABOUT 60 GRAMS PER LITER OF ZINC CYANIDE AND AN ALKALI METAL STANNATE IN AMOUNT EQUIVALENT TO 1 TO 2.5 GRAMS PER LITER OF SODIUM STANNATE AND TO WHICH HAS BEEN ADDED ABOUT 3 TO 26 GRAMS PER LITER OF A KETONE SELECTED FROM THE GROUP CONSISTING OF ACETONE, METHYL ETHYL KETONE, METHYL N-PROPYL KETONE, GAMMA-HYDROXYPROPYL METHYL KETONE, ACETYL ACETONE, DIACETONE ALCOHOL, MESITYL OXIDE AND CYCLOPROPYL METHYL KETONE.
Claim 2
Dependent Claim
82 words
THE PROCESS WHICH COMPRISES ELECTROPLATING ZINC FROM AN AQUEOUS ZINC CYANIDE SOLUTION WHICH COMTAINS ABOUT 60 GRAMS PER LITER OF ZINC CYANIDE AND AN ALKALI METAL STANNATE IN AMOUNT EQUIVALENT TO 1 TO 2.5 GRAMS PER LITER OF SODIUM STANNATE AND TO WHICH HAS BEEN ADDED ABOUT 3 TO 26 GRAMS PER LITER OF A KETONE SELECTED FROM THE GROUP CONSISTING OF ACETONE, METHYL ETHYL KETONE, METHYL N-PROPYL KETONE, GAMMA-HYDROXYPROPYL METHYL KETONE, ACETYL ACETONE, DIACETONE ALCOHOL, MESITYL OXIDE AND CYCLOPROPYL METHYL KETONE.
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) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |