US3682789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic solution for zinc plating
Assignee: Hitachi Ltd
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Filing: 1969-01-29
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Granted: 1972-08-08
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Expires: 1989-01-29
Abstract
Abstract AN ELECTROLYTIC SOLUTION FOR ZINC PLATING CONTAINING ZINC ACETATE, ZINC CHLORIDE OR ZINC SULFATE; AMMONIUM CHLORIDE; SODIUM OR POTASSIUM GLUCONATE; BORIC ACID; AND GLOSSING AGENTS. EQUAL OR SUPERIOR UNIFORM DEPOSITABILITY, CHROMATE TREATABILITY AND CORROSION RESISTANCE CAN BE OBTAINED WITH THE USE THEREOF.
Inventors
- 👤 Katumi Sakurai
- 👤 Kenji Odajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:38
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |