Patent US2602775A successfully refreshed from Google Patents.
US2602775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of zinc
Assignee: Hudbay Minerals Inc
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Filing: 1950-09-22
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Granted: 1952-07-08
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Expires: 1970-09-22
Abstract
No abstract record available.
Inventors
- 👤 Isherwood Eldon Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:31
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/16; C25D; C25D3/00; C25D3/02; C25D3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A PROCESS FOR THE ELECTRODEPOSITION OF ZINC FROM A ZINC SULPHATE SOLUTION, WHICH COMPRISES CAUSING DEPOSITION OF ZINC FROM THE SOLUTION WITH AN ALLOY ANODE CONSISTING ESSENTIALLY OF LEAD ALLOYED WITH SMALL AMOUNTS OF SILVER AND COPPER.
Claim 2
Dependent Claim
37 words
A PROCESS FOR THE ELECTRODEPOSITION OF ZINC FROM A ZINC SULPHATE SOLUTION, WHICH COMPRISES CAUSING DEPOSITION OF ZINC FROM THE SOLUTION WITH AN ALLOY ANODE CONSISTING ESSENTIALLY OF LEAD ALLOYED WITH SMALL AMOUNTS OF SILVER AND COPPER.
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) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |