US2547510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and process for electrolytic cleaning of metals
Assignee: Individual
•
Filing: 1949-01-08
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Granted: 1951-04-03
•
Expires: 1969-01-08
Abstract
No abstract record available.
Inventors
- 👤 Hugh G Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:21
CPC Classifications
C; C25; C25F; C25F1/00; C25F1/02; C25F1/12; C25F1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
FOR ELECTROLYTICALLY CLEANING METAL, A COMPOSITION COMPRISING 75 TO 90 PERCENT BY WEIGHT OF CAUSTIC ALKALI, 7 TO 13 PERCENT BY WEIGHT OF SODIUM CHLORIDE, 0.5 TO 5 PERCENT BY WEIGHT OF SODIUM ALUMINATE AND 0.5 TO 10 PERCENT BY WEIGHT OF ALKALI CYANIDE.
Claim 2
Dependent Claim
44 words
FOR ELECTROLYTICALLY CLEANING METAL, A COMPOSITION COMPRISING 75 TO 90 PERCENT BY WEIGHT OF CAUSTIC ALKALI, 7 TO 13 PERCENT BY WEIGHT OF SODIUM CHLORIDE, 0.5 TO 5 PERCENT BY WEIGHT OF SODIUM ALUMINATE AND 0.5 TO 10 PERCENT BY WEIGHT OF ALKALI CYANIDE.
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) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |